I am not very knowledgable about the subject of joysticks, but I can recommend you one...
But first, what do you mean by "throttle slider"? Are you meaning the kind that is seperate from the joystick, and is a handle you slide forward and backward? Or do you just mean something on the base of the joystick that you can slide, rather than using buttons?
If it is the latter of the two, I can recommend the Logitech Force3DPro. I own one, but haven't used it a huge amount... I bought it just before I sorta stopped playing flight sims, so I haven't gotten many hours in on it. Anyway, I like it... Then again I haven't had much contact with other joysticks, so I don't really have anything to compare it to

But yea, it's force feedback, and costs like $60. They also make (or made... not sure if they're still in production) on called Extreme 3D Pro, which is basically a non-force-feedback version for about $40 less.