Rollers RULE!

to the op, don't cut your steerer, get a stem with a steeper angle, 17deg is usualy the steepest, it will allow you to use more more of the steerer and keep your bars at the same level, thus you'll have to cut less of teh steere off, which is good, trust me. You never know what your position is going to be a year from now, it could be much lower, or you could develope really bad back pain and need your bars higher, or you might want to sell the bike and go to something different, in which case the longer the steerer the greater base of buyers the bike will appeal to.