I've done this and the single drives suit HTPCs really well, with Win7 Ultimate, apps and a few tweaks I'm only using 17.5gb
I've put up a thread in Product Suggestions forum, so here's hoping OCUK will stock them.
Buy it! They are good performers, I prefer the Crucial over my Samsung.
Make sure it's the PB22J model though. Also if you can find out the firmware revision, we will be able to tell you whether it is GC enabled (keeps the drive clean during idle periods). Sadly no support for new firmwares on the Samsung drives yet, so no sign of TRIM.
But that wouldn't stop me buying it for that price if you're satisfied it's all working