I do however want to add a single caveat. Right now people are still buying intel i7 950s for a pretty fair price off of ebay, and you can sometimes get away with picking up a i5 2500K for a fairly good price. In fact if I had sold my i7 950 with my mobo (still have my damnable mobo that is taking up space
) and ram I probably could have upgraded to a simple (yet powerful) i5 build without any loss.
What I like about that prospect is that the 1366 mobos use marvell controlled sata III ports. This severely impacts the performance of sata III SSDs to the point where some people actually get better results when using their sata III SSD on a sata II port.
But if you swap out your system, you can get intel sata III ports which actually makes quite a big difference in SSD performance. PLUS you get better a better CPU for things like trans coding media and that sort of stuff.
So let me put it this way. If you were somehow able to sell your system for a good price it would actually be worth it to upgrade in a certain sense.