Both a 802.11N wireless router and a gigabit ethernet router, the Linksys WRT350N also has Storage LInk, which lets you add additional storage to your network. Attach any USB 2.0 hard drive to the router and it becomes accessible to the WRT350N's media server so you can access all your files anywhere in the home. It's even UPnP compatible, so your Windows XP box can detect it immediately.
The wireless portion uses MIMO, which increases range, decreases dead-spots and overall gives you more speed for your money. Since it's draft 802.11N, there's no guarantee it will work with the final N products. Since the WRT350N isn't' actually available yet, you won't have to make up your mind whether to go draft N or wait for full N just yet.