I used to have the X45, which has rudder controls in a "rocker" on the throttle handle.
That was a nice feature, better than a twisty stick, but still not very accurate.
For Christmas I got Saitek Rudder pedals. Those things absolutely ROCK! They alone doubled my gunnery skills, especially when diving on a GV and ACK. The accuracy is DEAD ON PERFECT! I'd imagine CH pedals might even be better, but that's kind of hard for me to imagine right now. The toe brakes are quit nice as well... give you more control on the runway.
A lot of people claim there is a long learning curve required to get used to the pedals, but I didn't have that problem. Using them was like second nature to me. Perhaps if I was used to a twisty (instead of the rocker on the X45) I might have had a bit more problems with it. Also I've got a bit of real life flying experience, not a lot just a bit (Cessna 172).. but I'm sure that helped as well.
Also I recently upgraded to the X52 (And a 7900GS video card)... wow.. AH is a whole new game now! And the experience flying a Fighter has gotten at least ten times better!