It was another thread last week about matching/coordinating wallets, and I was reading through it to get some ideas....still haven't decided though. One option I thought about was just getting a bright red leather wallet (not necessarily Coach) that'll really pop against the brown.....or I may just wait and see if anything else comes out that'll go with it.
I'm using a bright red leather wallet (dooney) with it and I love the combo. Plus it's easy to find in a dark bag!