I just ordered the MSI 815EP PRO (R)w/RAID.
I also liked/and have owned:
Abit BH6 (never liked that I could not monitor CPU temp w/out modifying)
MSI 6163 Pro Master (had lots of these) Liked them a lot.
INTEL D815EEAL (no overclocking) Great board though. Onboard video/sound/lan.
I really wanted to buy the NEW MSI PRO266 (R), but not very overclock friendly.
And also want the ASUS CUV266, but it isn't out yet.