Wireless Keyboard Question

A friend of mine is getting a mini this weekend and since she's moving from an ancient Win98 machine, she has no USB keyboard or mouse.

She's interested in a wireless keyboard and mouse, but I'm less than thrilled with Apple's current offerings. So...

I'm wondering if those wireless USB keyboard/mouse combos work with OS X. They aren't Bluetooth and they have a USB dongle that plugs into the computer. Several of them are in the $30-80 range. Nothing fancy, but she just needs the basics. Microsoft's Wireless Optical Desktop 700 looks like it's perfect for her... if it works.

Any ideas???