This question of water cooling vs air cooling is one that people have debated for a long time at techspot.
In my opinion, if you had to ask if watercooling is for you, it probably isn't.
Just a few months back I think I asked the very same question, and I decided why it isn't for me:
1. too expensive.
2. I run my comp on a 24/7 basis, and I don't think that's gonna be good for pump life (i.e. expensive maintainance)
3. my comp's temperatures are fine enough, even after OC.
4. too much trouble to install.
If you're still asking if you want watercooling, make sure you have a good reason why you'd want to put water in your comp. Without that reason, I think its pretty pointless even thinking about it.
Of course, the wow factor is really nice, but if you don't go to LAN parties often....
