A way to search all auctions for prewar?

[obcbeatle]

Is there a way to search all current or upcoming auctions (non eBay) for prewar cards? For instance, if I want to search all auctions for a T206 Cobb or M101-2 Wagner, etc, is there currently a search engine that can do that effectively? Just thought I'd ask.

There are so many auctions and auction houses these days that it is often just wasted time to try to keep up with them all, and to try to find a few prewar cards (at least for my tired eyes) The best thing I've found so far is to get on Auction Reports mailing list (thank you AR!). But still takes a lot of time to browse, register ... Also, I'm finding advanced search functions sadly lacking on many auction web sites :-(

Lastly, are there auctions houses that specialize in just lower to mid grade cards? I find all the TPG 7-10's mind numbing.

Sorry if this sounds like a rant. But I just spent (wasted) most of my one day off trying to browse sport memorabilia web sites for cards to spend $ on, and didn't find much :-) Thank you.