I am looking at different options for a wireless mouse for a UniMBP. I don't want to have a wireless mouse, because I would need to plug in the receiver I wanted to use it. Bluetooth I am on the fence about, there is the Razer Orochi which has good reviews, but seems like it is small so won't be comfortable & it is bluetooth, so responsiveness isn't guaranteed to be that good. As of right now, that is my #1 choice, it seems like Razer has made some landmark innovations with it. Anyways, I was just thinking....is there such thing as a wireless mouse which the receiver connects through the express card 34 slot, instead of USB?? If so, is it flush with the machine? Will it stick out like a sore thumb? &&& I already looked on google, maybe I didn't use the right search words?