ATM Collimation question

[osthill@htc.net (Lisa Flaum)]

I'm relatively new  to amateur astronomy. I have a 10"  f4.5 dob. It
requires fairly frequent collimation. I have no problems using collimating
eyepiece in daylight but now that days are shorter I don't get home from
work early enough to catch daylight. Would a laser collimatng device be
operable at night? How do you select from several models out there? Getting
up earlier to collimate in early morning is an option, but not one I
relish. I'm not a bright and early riser.

Thanks,

Al Flaum