CAX.com is a domain name auction site primarily for people in the domain industry. It seems to be operated by the same gentleman that owns
Domaining.com,
Valuate.com and numerous other very well respected top quality domain sites. One can usually expect lower prices as this group wants to make a profit. One thing I find attractive is the wide audience you can immediately get your names in front of. The information becomes available in Google results very fast also. The data seems to be supplied to it's audience on a tiered approach based on a membership level. One thing they need to work on is a submission verification process for us bad spellers.