I'm finding myself in need of a wireless adapter for my xbox 360 now...rather than spend the $100 for that, I'm wondering if there's a way that I can buy another wireless router...tell it to act as a repeater of my existing wireless router, and be able to plug my xbox 360 into that through the wired interface...is there some router/access point device I can buy that will accomplish that?
Myself? I would buy a Linksys WRT-54GL
which is a guarantee it runs Linux, then install DD-WRT on it. You can then use it as an ethernet bridge very easily, and it's a lot cheaper than buying a hardware bridge.
If you are using an 802.11n network, I would recommend buying the ASUS-500W router; best investment I've made in a LONG time (and it runs the DD-WRT Mega builds no problemo).