Yah, do what Dapunisher said. No point in getting the 200mhz DDR Athlon if you are getting a new mobo as well. Also depends somewhat on what components you can port over and if you plan to use RAID or if you have a RAID card. Might wanna go with one of the more expensive ones if you need sound (Abit, Asus, Soyo, Iwill).
Chiz