UJM stands for Universal Japanese Motorcycle. More on the term in this wiki:
http://en.wikipedia.org/wiki/Universal_Japanese_motorcycle
Essentially a very standard bike that can do it all, but not to a surgically excellent degree like a dedicated supersport, touring bike, trials bike, etc.
GOogle some info on these bikes (all available + sold in Canada in the last decade or two): Kawasaki ZRX, Suzuki Bandit, Yamaha FZ6/FZ1, Triumph Speed Four(not a true standard, just a street-fightered TT600), Triumph Speed Triple, Triumph Street Triple, Ducati Monster, Suzuki SV650/SV1000, Kawasaki ZR-7, Kawasaki Zephyr (550,750,1100), or either of the Honda Hornets (599,919).
If you're looking at a Busa why not a B-King? I know they're a little unusual to look at in photos, but they have an undeniably intense presence and is sort of like an ultra UJM. I've seen gingerly used B-King's for sale at pretty low prices too in the GTA.
I've given you a list ranging from Japanese I-4s to Italian V-twins, stripped down super-sports to dedicated UJM/standard sport-tourers; all of which are bikes I would be glad to have for different reasons. Good luck and if you get a chance to ride any of these do it! PM me if you want to check out a Bandit.
