Had a vertex 2 die on us this past friday, absolutely NO warning. It just died (sata link failure) (so the controller i would imagine died) . Luckily i didn't have any sensitive data on it. (I figured i'd vet the hardware before doing that) Looks like my conclusions where correct.
I expected the drive to fail but not only a
month and a half after i got it, not
without ANY warning signs and with absolutely
no safeguards.
The drive isn't recognized in any bios on any system or in any capacity or with any platform on either.
Thats a shame i had high hopes for SSD's.
A good tip would be to only use the SSD as a boot and "scale" device for games or graphics intense work. And Change the "user" environment in windows to another and/or ~./ ("home") environment in linux when using the "adduser" command to another.
Another = Being Other magnetic disk(s). 
You can even setup even further safeguards by setting up a "+important doc" context menu command that would auto burn your files or folders to optical media while the system is idle without writing a TOC command or closing the media (i recommend a DVD in this case).
I'm curious what is stored in the user environment, for instance windows update logs or performance and security logs? And if or not you can set this "thrashing" to the magnetic disk to only occur when the system is idle? That would be very helpful with cpu performance???????
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It seams like the company
seagate got it right with their Momentus hybrid and Momentus hybrid XT drives, that use !?
SLC!?(can someone confirm "slc"?) 4GB SSD nand and up to a 500GB magnetic disk for mass storage.
!!
The question is however if the controller on any of these hybrid type "SSD"'s are hot swappable and dont require any soldering or highly expensive equipment to replace the controllers when and if they fail ???? :-/
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In closing
No seriously tho., Be careful also if you DO buy a SSD to make sure it doesn't have on board encryption because if it DOES fail you might have to pay a data recovery company more than the drive is worth in most cases.