Graggy,

How much play? If it is safe to run, you can video and post on youtube, so that I can see it. and let you know. Do you mean the play is the radial motion or literally side to side? If you are getting side to side motion only then the front bearing must be loose. If you are getting forward/backward motion as you push on the shaft, then both bearing may be loose. There are other possiblities, but with less frequency. This is like diagnosing sickness over the WEB:-)

Peace,
Steven Chao,
CERMARK