Kensington Expert Mouse/Trackball??

[Q-bit]

Was looking to get one of these off Ebay (seem pretty cheap) and was wondering if anyone had any experience with them. Do they feel pretty good for things like Missile Command and Centipede?? Thanks!

[AtariGuy]

I love mine, seems to work great for those games. Since it's relatively flat, you could actually build a bigger housing for it as well and it would even feel closer to a happs trackball. I like the fact that it's very easy to clean (ball just comes out) and that there are 4 programmable buttons.

[u_rebelscum]

I like mine, but two things you should know about them.

1.  Until you get used to them, spinning hard to the left and a little down (8:30 o'clock), or up and a little to the right (12:30), the ball might come a little out of the socket.  (they are the spots exactly between the rollers)  Once I replaced the original ball will an 8-ball pool ball, it "sat" in the socket better because the new ball is a little heavier.  But the original ball now "sits" better too, so maybe it was because I was spinning it wrong.

2.  (Important only if you are thinking of hacking one)  They use a different setup than most mice/trackballs, and would be difficult to hack into a different casing.

[JumpMan]

These rock! If you don't have the $$ and the time to buy a HAPPS trckball and build a casing for it, this is the best and cheapest solution available. You can pick them up for $40-60 used on Ebay.