I use an Eotech Holographic sight. It isn't a "laser" sight, but in NJ it is illegal to use anything that projects a beam/ light onto the target (deer). As for the Eotech, it is awsome. It is just like the reticle in a gun scope. Additionally, the customer service is unmatched. I had a problem with it and company fed-ex'd me a new one, no questions asked! I'd definitely suggest that you check one out, but get ready to drop about $350 for the sight and mount.
Hope this helps.
"Measure twice, shoot once <img src=icon_smile_evil.gif border=0 align=middle> "