[Frank Manno] “Should I go buy a scroll wheel mouse and if I did, how do you scroll left and right with those?”
You can get scroll wheel mice where the wheel tilts left and right, though I’ve never liked those. The Mighty Mouse is delightful for the five seconds before the wheel gunks up. I’ve stuck with and been happy with a Logitech MX518 (not looking forward to trying to replace it).
As far as left-right scrolling goes, hold down shift and scrolling up/down becomes left/right.
I’m not sure if the direction is altered by the natural scrolling option in 10.7 and later.