The EPoX EP-8K7A can be found at newegg.com for about $125ish. (That's before shipping).
Basically the 8K7A uses the AMD761 chipset, where the 8KHA uses the VIA KT266 chipset. The 8K7A will outperform the 8KHA. However, this is NOT the case with the 8KHA+ (Which uses the revised KT266 chipset, or KT266A).
Basically, the 8K7A costs more than the 8KHA but performs slightly better. The 8KHA+ performs slightly better than the 8K7A but is slightly cheaper than it. I'd recommend the 8KHA+.
Also remember - EPoX traditionally uses a + to indicate RAID or some other features on their motherboards. (The 8K7A+ has RAID). However, the 8KHA+ DOES NOT HAVE RAID. It merely has the KT266A chipset in place of the 8KHA's KT266 chipset.