ECS boards are good quality, stable, and in most cases high performing boards, up to par with Asus and MSI counterparts, and they're inexpensive. K7VzA is a good board, I don't have any experience with it but it is a solid, inexpensive board, like for example the K7VZA is $50 cheaper than the A7V133. Should you dump your A7V for it? Certainly No in your case as I see you are doing some serious ocing, and ECS boards are lacking in ocing options compared to A7V. But if you are in for a mobo upgrade than it really should be a DDR board, and a RAM upgrade to PC2100. i would recommend Epox 8K7A+, has incredible ocing options, including a 1/5 PCI divider should be able to take your fsb to incredible height's, and everything an ocer would want, plus high performance, and RAID. 8K7A+ on Pricewatch is sold cheapest for $119 for non RAID (8K7A), and $140 for RAID (8K7A+).