I just put together a controller kit yesterday, the ID-O-Matic IV from Ham Gadgets: http://www.hamgadget...m/id-o-matic-iv
From the name it sounds like just an IDer, but it actually can control a repeater. It has a lot of features for the low price, and is in my opinion all I really need or can use for a GMRS repeater. Works pretty well as a ham repeater too, in fact.
You can get this controller already assembled for about $60, but I elected to save $20 by assembling it myself. It's been awhile since I put together a kit anyway, and that's part of the radio hobby for me.
It shipped quickly and wasn't missing any parts. It doesn't include a hard copy of the manual; you have to download a pdf from the website. I had already done so in preparation. It went together with no issues, and no magic smoke escaped when I powered it up to test.
I haven't tested it with the radios yet. First I have to figure out the programming, which is done via usb with a terminal emulator program. I also have to interface to the radios, which shouldn't be too difficult.