I wanted to upgrade routers from a G to an N. I just bought a MacBook Pro. I'm not technically inclined. What routers are configured to work with the Lion Operating System?
Technically none (as far as I know).
Most routers (as a Macintosh user) you have to set up yourself. Many routers come with a "Windows-based" install & setup disk...but of course that doesn't help us Mac users. And most routers do not come with a Macintosh setup & install disk.
Pretty much any "n" router will work (although with Lion being relatively new) there may be some wrinkles. Just make sure you're using the latest drivers & firmware for the router you purchase to insure compatibility.
The bottom line is (IMHO)...purchase a brand named router, read the setup instructions carefully...and you should be fine. But you may find this process a bit more frustrating than the "normal" easy to setup "Apple way" of doing things.
- Nick
p.s.. By the way...I know that you mentioned not being technically inclined. This of course is a non-quantitative term...so your "not technically inclined"...may still be better than someone else's "not technically inclined.

Setting up a router can be a bit frustrating...so just read carefully, take lots of breaks, and stay calm.