Best performing/value SSD or duo, at 40-100GB?

[jalyst]

Okay coming back to this for the 1st time in quite a while, I did warn you I'd be back!!

As you all know I proceeded with an X-25v....
I've found that this indeed is not enough room, I really do need no less than 60GB.
So now that sand-force drives & their iterations (SF-1200, SF-1500 etc) have been in the market for some time.

What is the OS-SSD performance king now, in your well-informed opinions?
Remembering I really don't need a drive much bigger than 60GB.
Although I'm prepared to consider up to 100GB if the case can be made.

Also RAID-0 SSD scratch-disk...
Are JMF618 & Barefoot SSD's still the sweet-spot for low $/GB + high seq/sustained R+W?
Or are there better options around now?

I eagerly await the gurus in this forum's thoughts/opinions!!
And I'm starting a flurry of reading myself, in-order to catch-up with where the market's headed in the past 3.5mth!

Thanks for weighing-in mate, tis appreciated.
To be honest I'm not entirely certain if a scratch disk is advantageous for my foreseeable uses...

I guess GullLars suggested this because captured DVB streams (-T & -C) & other content I want to transcode could (mostly) auto-write there.
And then once transcoded be auto-read off the the array to my storage HDD/s.

I think when there's a lot of encoding/transcoding occurring it can be useful to have a high bandwidth (seq. r/w) storage medium.
Hence his idea of a dedicated RAID-0 "scratch-disk" using a make/model that would enable me obtain relatively high seq. r/w's @ good $.

Not sure how big, hopefully 60GB in RAID-0 should be plenty, that way I can keep costs down.
And I guess the ideal SSD needn't be great with random I/O, just sustained r/w & good $/GB.

But as others have made me realise, it might be best holding-off on the scratch disk and just focusing on the OS drive.
So it's a case of getting the X25-M now or getting the X25-V as a temporary measure, & seeing how SF-1500/1200 drives compare value-wise in a few wks.

Thank-you/night.