yeah i use the arrow keys i have this setup where i put all the keys on the rightside of the keyboard, evening using the num lock set of numbers
forward- up arrow
backwards- down arrow
strafe left- left arrow
strafe right- right arrow
crouch- ctrl
walk- shift
fire- left click
jump- right click
weapon select- mouse scroll
reload- ins or 0
weapon function- end or 1
drop weapon- 4
thats what i use its really affective, its easy cause i issolate everything to the rightside, i also suggest using the right click to jump