Bluetooth mouse alternatives?

Hey guys, can any one think of any decent bluetooth mouse alternatives.
I would like a wireless mouse without the wireless dongle to connect it. So it work like an apple mighty mouse.
I am currently using a magic mouse, but the scroll is annoying me and i keep going back a page on the net accidentally...

i have a MBP so USB ports are for special things only, not to be taken up by a mouse dongle.

Thanks for the help in advance.