Watch out for Brother MFC lasers though, as I have somewhat limited functionality with the MBP compared to the PC on the network. Even with all of the latest drivers straight from the Brother website I don't have the ability to manually duplex directly from the print page. I now have to print odd pages first, then reverse printing order and print the even pages. Of course that all depends on if I can get the MBP to actually print at all. Often it cannot find the printer, and when it does, the printer may go through a preparation cycle and then never print anything. If it does print, it will print one.......page........at.......a......time........
My PC desktop is about 8 years old and prints flawlessly through the network at high speed. Brother was not supporting Snow Leopard for a while and from what I am experiencing it would seem they are still not.