My friend let me borrow his Sears rotary tool (Sears item #00917254000 Mfr. model #17254) and I loved it so much I bought one. I think it's a great tool. 5 amps, 20k-30k RPM, 1/8" & 1/4" collets, router base, handles, stand-off guide, hole cutter guide, grinder, edge guide, flexible shaft with pen-sized handle, built-in work-lights... all for $99 (often $90 on sale).
I used it for routing out the joystick mounts, the trackball hole, ronting and mounting flush the trackball mounting plate, and edge cutting the T-molding slot. I love it. I might build a cocktail cab just so I can use it again!! You have to move slowly and it helps to have a steady hand, but isn't that true for all power tools?
Chester