Q-tec
..stay away. If you dont, dont say you weren't warned
Asus & Abit are defiently reccomended mobo's.. the Nf7's-s is a great board.. can vouch for the A7N8X deluxe as well.
Wouldnt reccomend gigabyte at the mo, since I've RMA'd two boards last week, due to a faulty ATX connectors, and two of the dimm slots being faulty.
As for PSU's Antec are the way to go.