Here's another source for a mouse that is quite different from the last one I sent you. This might be better for those with shakey hands. It is a lot more expensive. Here's what it says about it.. RemotePoint Interactive Wireless Mouse Free yourself from the confines of your mouse pad. The wireless, hands- held remote point interactive mouse allows you to walk freely around the room during computer presentations. In fact, this powerful unit lets you enjoy one-handed pointing, clicking and dragging from as far away as 40 ft. This ergonomically-designed unit is perfect for right or left-handed use. To set up, simply unblug your mouse or trackball and plug in the Remote Point receiver. Then just aim the remote and press the button! Transmitter operaties on 2 "AAA" batteries. item # D82A-20670 Macintosh weight 1.0 lbs price $199. D82A-20671 IBM-DOS D82A-17779 IBM-DOS 129. ProPoint Remote Interactive Mouse similar to other two units above, but on a 6 ft. serial interface cable (info. re: bottom one.) oops middle one is $199. too. This is in a catalog called: Highsmith 1-800-558-2110 >From a catalog called: BT Office Products International 1-800-546-1267 In this one I found: New. Alps Glide Point Pointing Device Simply glide your finger over the surface to control your PD; to double-click an icon, just tap your finger on the surface or use buttons below. Features 400dpi resolution and programmable third button. Compact, lightweight IBM compatible pointing device plugs into serial and PS/2 ports-includes PS/2, DB-9 and DB-25 adapters. Manufacturer's limited lifetime warranty. size 2 3/4 x 3 weight 2 oz. APS00892 Mfg. NO. 10089200 price $87. There is one more catalog that might have better prices. It's called MEI....right now, I can't find one...When I find it, I will check and see what it has. Hope this helps!