I was wandering through my local Radio Shack yesterday when I discovered
that they were selling Velleman kits. I was more surprised when I found the
K8055 USB experimenter's board (that works with MH) on clearance. Their
normal price is about $60. It was on sale for $29.95!
The best price I'd found lately on this board was through Amazon for $41.00.
So if you're handy with a soldering iron you can get some analog & digital
I/O for your MH setup.
Radio Shack's part number is 277-0035.
I do not work for them; I just wanted to pass along the deal information.