Do you really want to spend so much money, and expect so much work from an original MBA? With the value of selling your original MBA, and the inexpensive price of rebuying a rev 2,1 MBA with 1.86 GHz CPU and 128 GB SSD already included for $1349, WITH A YEAR'S WARRANTY, you could have a much more desirable and capable system. Let's say you get the ridiculous amount of $800 (which is what I saw on eBay last week), for your 1.6 GHz CPU and 80 GB HDD. You market it as having a new OEM display installed by Apple.
Then you spend $550 more to get a refurbished v 2,1 MBA with 1.86 GHz Penryn CPU (17W vs. your original MBA's 1.6 GHz at 20W Merom CPU), Nvidia 9400m GPU (at 5X the performance of your original MBA's Intel 3100), 128 GB SSD (vs. about 1/10th the speed of your original MBA's 80 GB HDD), 2 GB DDR 3 RAM (at over 50% faster than your original MBA's DDR2 RAM), SATA-II Drive Controller (vs. your original MBA's PATA drive controller), Mini Display Port capable of native display on up to 30" ACD - also beautiful with 24" LED ACD (vs. the Micro DVI capable of native display on up to 23" ACD - not capable of driving newer ACD nor assumed next LED ACD of 27"), and finally you get the luxury of a one year warranty on top of all of those editions.
What does the Runcore SSD cost? About $450 let's say. So it's $100 more plus tax to get these extras: 1.86 GHz Penryn, Nvidia 9400m, DDR3 1067 MHz RAM, SATA-II Drive Controller, Mini Display Port capabilities of driving larger newer ACDs, and a one year warranty. And that's not considering the 128 GB SSD stock drive vs. Runcore SSD. But there is one last very important piece to this puzzle... the Runcore SSD is limited by the PATA Drive Controller on the original MBA, where the stock SSD is benefiting from the SATA-II Drive Controller on the v 2,1 MBA. Net results are nearly identical end user read and write speed performance between the stock SSD on the rev 2,1 MBA as you will get from the Runcore SSD on the original MBA.
Runcore SSD on v 1,1 MBA
Uncached Write 48.24 MB/sec [4K blocks]
Uncached Write 56.5 MB/sec [256K blocks]
Uncached Read 15.29 MB/sec [4K blocks]
Uncached Read 76.91 MB/sec [256K blocks]
Uncached Write 7.95 MB/sec [4K blocks]
Uncached Write 54.74 MB/sec [256K blocks]
Uncached Read 12.68 MB/sec [4K blocks]
Uncached Read 69.71 MB/sec [256K blocks]
Stock SSD On v 2,1 MBA
Uncached Write 50.88 MB/sec [4K blocks]
Uncached Write 34.01 MB/sec [256K blocks]
Uncached Read 13.03 MB/sec [4K blocks]
Uncached Read 90.01 MB/sec [256K blocks]
Uncached Write 5.50 MB/sec [4K blocks]
Uncached Write 24.22 MB/sec [256K blocks]
Uncached Read 9.85 MB/sec [4K blocks]
Uncached Read 86.90 MB/sec [256K blocks]
I am just saying... look at the benefits vs. tossing money at your older system that will be so inferior to this strategy of getting a v 2,1 MBA for about $100 more. Look at the benefits now, and look at the benefits two years down the road. You will be greatly rewarded by the Nvidia 9400m taking advantage of OpenCL and h.264 with the v 2,1 MBA. It will make more and more impact over time. In addition, faster RAM, faster clock speed, more L2 cache, better GPU at 5X performance, and the capability to drive CURRENT Apple Cinema Displays.
This is an absolute winning approach to the MBA. I highly recommend the Runcore SSD if you already have a v 2,1 MBA. If you have a v 1,1 MBA, you're better off spending the small difference (of selling old system and upgrading to v 2,1 in Apple.com refurbished Mac section) to get a system that actually competes in today's computing and has nearly identical drive speed as the PATA drive controller allows with Runcore SSD on the original MBA.
Your original MBA is a sunk cost. Forget about your joy with it or how much you paid for your original MBA. Only realize the advantages for the limited cost in taking an approach to get a new system that is upgraded in every way over your original MBA. Not only that, you will notice the differences in nearly everything you do on the MBA. Whether it's an upgrade you will benefit the most from now or a year down the road, this strategy will absolutely be worth the small extra investment over keeping your original MBA and upgrading the drive to a Runcore SSD.
Good luck whichever way you go.
EDIT - The numbers reported for the stock SSD on the v 2,1 MBA are low. When Apple upgraded to Snow Leopard, or maybe was with a 10.6.x update, the stock SSD's drivers were changed greatly benefiting the stock SSD's scores. I will report back with those scores later, as I am getting ready to leave now. But, I believe I remember the stock SSD getting nearly double the read speeds and slightly faster write speeds. This would make the V 2,1 MBA's stock SSD much faster than the original MBA with a Runcore SSD installed! Even more benefits for the upgrade to v 2,1 MBA. If you want a Runcore down the road, get even faster results later. For now, the Runcore SSD on the original MBA is going to be limited by its PATA drive controller.
Good luck.
