Polish inlaid boards are nice & durable & last forever. Folding polish boards at USCF are really nice as well. If you like to scoot pieces the folding board wont work for you though.
Wood boards under $100.00
I have the House of Staunton folding walnut/maple board and am playing those pieces on it. They work well together, and it's a decent board for sub $100.
http://www.houseofstaunton.com/folding-walnut-and-maple-wooden-tournament-chessboard.html
If you want a non-folder, this would be equivilent (be sure to select the 2.25" square size):
http://www.houseofstaunton.com/walnut-and-maple-wooden-tournament-chessboard.html
Here's a nice folder I own and it's still on sale. It even has the proper lower case letters.
http://www.chessset.com/folding-chess-board.html
So I picked up the chesscafe international rosewood set, now I need a nice wood board to use it on. I am looking for 2.25" squares, any suggestions?