Basically this turns your internal electrical wiring in your house into a network cable. So using one of the numerous USB to Ethernet adapters that do work just fine coupled with this bridge you can create a pseudo-wireless network.
Best Buy currently has a package called the XE102g which comes with 2 Netgear XE102's for $100. The website only shows the package with a single bridge for $80, but I just picked up this other package.
Also I don't know if OfficeMax is discontinuing them, but you can pick up a Belkin USB to Ethernet adapter for $25 each.
I've found this seems to be the best solution for my setup as I always have flaky wireless connections in my house. I'm sure any of the USB to Ethernet adapters that have been listed to work will also work just fine.
It's only a bit pricey for the first set which is $100 and then it's $100 to add 2 more. The game adapters are like $70-100/piece and you deal with wireless problems. This is just like an ethernet connection so it's much more stable in my case. Plus if you don't already have a Wireless G router you save that money too.
Not a replacement for wireless just an alternative for people having trouble plus it is quite a bit faster.
I just pseudo-wired my house with these little buggers and they work great. I still have my wireless topology for meandering around with the notebook (read: websurfing in the loo ), but for my tivo units these make for a very stable and easy to configure solution.
I picked mine up on eBay from a refurbishing clearance place for $21/each +s/h. Significantly cheaper than what I've been seeing in the stores (~$50-60/each) and just as effective a device.
I have 2 TiVo units and my router is a Linksys WRT54G. Would I need 3 of the Netgear devices to connect everything? I'm assuming one for each TiVo and then the 3rd one near the router running a CAT5 cable from the wall outlet to a port on the router?
Also, would this solution allow for MRV between TiVo units? If so, does one get real time transfers?