Let me see which side of the naming fence members fall on here. You understand DomainPairs idea. Would you stick with his name:
NameDump.com (memorable to be sure but possibly negative connotiations), or would you favor one of these (all available as of this writing):
Domain-Surplus.com (a little more professional sounding, but has that darn hyphen)
DNSurplus.com (no hyphen and shorter, but the DN initials are recognized more by insiders than the general public)
Namex.biz (leaving .com all together to get something really short and catchy but with an untested TLD - Namex standing for Name Exchange).
Which of the four would you choose?