I have a MacBook 2.26 Ghz I bought in March, with the stock drive and 2 GB of RAM. It's our second computer at home, and I use it when I travel. Now, however, I'm going to be using it as my main computer at work. Although I don't do any graphics intensive stuff, I'm not satisfied with the performance of what I've got right now. I'm used to the responsiveness and peppiness of my Mac Pro, and while I don't expect the same from an entry-level MB, I'd like to boost things a bit. I'm considering two options: the first is to get an SSD (probably the highly-rated OWC Mercury Extreme) and then upgrade the RAM to 4 GB. The second is to sell the MB and get a new MBP (2.53 i5 or 2.66 i7). My question is, which would give me the most bang for my buck? I've never used an SSD, so it's hard for me to know how much it would improve day-to-day performance. Also, I'm not familiar with the i5 and i7 benchmarks, so I don't know how much of a performance increase I'd see over my current MB 2.26. My storage requirements are minimal (I use Dropbox, iDisk, etc.) so a 120 GB SSD for around $300 would be fine.