Two X25V is not much more than a single X25M. Check out:
http://www.anandtech.com/show/3618/intel-x25v-in-raid0-faster-than-x25m-g2-for-250
And yes it is noticeable and worth while - but not as much as from going to a SSD from a HDD - actually no where near that - but still noticeable...
I put everything except data on my SSD. I point all my downloads etc to my non ssd drive. I have windows 7, quite a few apps and Crysis stored on it. It only takes up 25g - yep thats all. IMHO even a 40g SSD drive is more than enough - that would be a single Intev 25V which is pretty cheap...
Top notch article. I have two Falcons raided and was thinking about upgrading to a SATA 6GB/s board and getting a pair of SATA 6 SSD's raided when a few more become available other than the Crucial C300. Wont do it now until Intel releases their drives.
As an aside does anyone have any idea...