Are you flying vintage aircraft or modern "fly by wire" aircraft?
I'm researching two different manufacturers: CHProducts
http://www.chproducts.com/ and Saitek
http://www.saitek.com/ . From what I've been able to learn from some other flight sim forums, it seems the CHProducts sticks, yokes, peddles, etc are the preferred units. The Saiteks are nice, but the CHP units are said to "bear up" under hard usage better...
As I'm flying more modern aircraft, I'm considering the CHProducts Pro Throttle and Fighterstick. Buying the pair will set me back about $300.00 but I'm interested in flying X-Plane aircraft so the programmability of these units is important.
Cheers!