who makes a decent center channel speaker?

If you are trying to match R&L's that either don't have a center or the center is too much $$$, contact speakercity.com Tell them what you have and they may be able to build you something voiced very closely, even using the same drivers. They did this for my Coincident speakers before there was a center available. It was fairly cheap too.

Kal, they can't clone a speaker but the unit should get someone by for a while. I didn't have an extra couple grand to buy another pair of coincidents and they didn't have a center on the market yet. Speaker City made me a reasonable unit. Same drivers, similar crossover specs, totally different cabinet.