I'm familiar with the Dell, NEC, and HP and the HP is no doubt the best since its an S-IPS. Of course, if you could splurge on NEC's 24" that'd be even better.
For all those confused about the SG07. Hopefully this will provide some help.
For the slim drive you do need an adapter as mentioned above. The cheapest I found was 3.50 on ebay.
The cooler was a PITA for me. The Noctua SE14 doesnt fit at all on the gigabyte board. I then got a silverstone...