Here are some quick benchmark on the intel 520 120gb as an os drive
controller: ich10r sata2 3.0gbps
Atto

Crystal disk mark default

0x00 fill

AS SSD

iops

copy

Reason that I bought this drive is because my gskill falcon I 120gb is faulty and out of warranty (2.5 yrs)
Intel has 5 yrs warranty so I thought why not
Initial impression....not much difference (if any) as a day to day drive compared to the falcon
Might fire up a game or too when I have time (doubt there will be any difference in loading time)
Will be interesting to test again in say three months to see how much speed drop there is.
Cheers.