I rekon this will do you well:
Asus Commando P965 (One of the Best clocking boards out)
x2 2GB sets of Cellshock PC6400 4-4-4-12 Micron D9
x2 Seagate Barracuda 500GB (RAID0)
eVGA 8800GTX 720MB (All that is needed for 19")
Tuniq Tower 120
Corsair HX620 Really dececnt PSU for your money
NEC AD7170AS 18x18 DVD Writer SATA (get 2 if needed)
Asus 19" Wide LCD
The only 8800GTX that I know is 768mb, not 720mb.
Never heard of Cellshock memory. But I would suggest G. Skill instead.
And 8800GTX needs a screen bigger than a small 19". More like a 22" or bigger, is needed for an 8800GTX. For a 19" the 8800GTS 320mb is enough.
IMO, I think the DS3 and P5B Deluxe are better overclockers.