well, u should tell us what kind of car you have for one thing, it would help a bit. anyway, if your car is pulling to one side and you've already got an alignment then i would guess that it could be a warped drum causing excessive drag on one side, or you may have a stuck wheel cylinder so there is uneven braking on one side.
as far as your steering, this must be an older car if you've got drums all around. do you have a steering box? most older cars have a bit of play anyway in the wheel and from the column to the box or rack. if it is a steering box you might be able to adjust the play a bit. there is a worm gear in the box with a gear on the column that fits inside. maybe you can adjust this to take up some slack.
hope this helps.