hey firstly if ur going for a 2800+,i think a good economic mobo like the ASUS K8V shud suffice.good features but dusnt overclock that well.on the other hand if u wanna go for the other mobos,although being a ASUS lover and fanboy,id suggest the K8NNeo.
also id suggest that u wait for the Nforce4 and buy a socket 939 processor because the 754's might be phased out by the end of next year.