If you're on a tight budget, the Thrustmaster T.Flight HOTAS is a good option:
http://www.amazon.com/Thrustmaster-T-Flight-Hotas-X/dp/B001CXYMFS
I recently got it, after picking up BS, and am happy with it so far. It seems well built (particularly given the low price) and gives you enough buttons to get by (although you will need to use the keyboard more than someone with an X52).