Nah -- here's something even better than that. Enter the Logitech Cordless Mediaboard Pro, a keyboard designed originally for the Sony Playstation 3 but works perfectly via Bluetooth with Windows and Macs (you just have to relabel - or put up with - a couple of odd symbols on some modifier keys). These can be bought for about A$100 or so.
If you really want something Mac-oriented,
Adesso make an RF-based (not BT, but stil wireless) keyboard with a centred (laptop-stylin') trackpad. A bit hard to find here, and when you do they're around the $200 mark.
If money is no object and you just have to have the best, then the Logitech diNovo Edge Mac Edition is a gorgeously slick bit o' BT kit. $400 and change, though.