Just for the record, SSD is NOT new technology. However, you are correct that they are beginning to become practical enough for mainstream use, and that prices are going down.
My plan is to buy a new MBP (whenever it's released) with a high capacity HDD. Then, when SDDs are more affordable/reliable, I'll use an OptiBay or something similar to set up a hybrid situation, using the SSD for applications and the HDD for mobile file storage.
As a frequent Logic/Pro Tools user, I can't wait to enjoy the benefits of larger SSDs a few years down the road, but right now I'm doing my best to transition smoothly without maxing out the credit card.
(ps, hello MacRumors world!)
Well, I just noticed this was your first post. Welcome here!
You're doing a smart thing. I actually already have the OptiBay adapter waiting here for an SSD, but I'm in no hurry to use it. I saw the 512GB SSD's on NewEgg and I sure look forward to putting one of those in my machine some time down the road. The prices are pretty outrageous right now though.