I am one happy guy right now. I figured out how to use my old junker Linksys as a bridge with my wireless USB adapter. Connect to the main router (hooked to the DSL Modem) with the USB adapter. Then share that connection in Windows. Plug the Cat5e from into the ethernet port on both the desktop and router, set the router to auto-config IP and WALLAH! This means I don't have to buy a $70-100 bridge to get my church connection up and running how I want it. This is good. The downside is that both the USB adapter and router are Wireless B. Ugh. Thinking about that now, that probably won't be fast enough and will make the wireless N router pointless.
EDIT: Actually, didn't prove to be TOO horrible
vs. my normal connection
Biggest difference is in ping, which is to be expected. But for just streaming power points right now, it should be okay. Oh well. It'll get tested first anyways.