I've bought a few AP straps from AP Bands... really great quality and service, but are relatively expensive (to the cheaper alternatives).
They have a very wide range of styles and materials:
http://www.apbands.com/
Sorry to hear about this... That really sucks!
We were broken into when we first moved to Australia... took all the watches, gold and diamond jewelry, and even all our sunglasses. It's a terrible feeling when people steal from you!
I know it's not the same, but the bright side is YOU CAN NOW GET NEW STUFF!