CH Products - Can't really go wrong. I've been using the Pro Throttle, Pro Pedals and Fighterstick for 3 years now without so much as a twitch.
Oh and by the way, if you don't already own one, do not forget to budget for TrackIR 4 :)
P.S. Here's an excellent review of the Saitek X52 Pro setup - http://www.simhq.com/_technology2/technology_104a.html
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Murphy