It really isn't going to matter much what you pick. Just go for a main brand (Linksys, Netgear, etc). You're going to be stuck in WEP because of the DS. Unless you want something fancy like audio broadcasting and/or wireless printing to the router (in which case the expedient thing to do is to get a wireless card for the PC and an Airport Express), there's no point in playing around. Some variant of the WGR-614 or WRT-54G will do you just fine. There are several threads about these routers.