Well I thought I would give this site one more plug after a fine day of rock shooting.
http://www.biggameinfo.com/index.aspx?page=/balcalcadv.ascxGives some very detailed info including clicks, drop, wind, vel, and optimum game weight (I like this because it gives you an idea of max range for hunting)
Best part about the site is after verifying that my scope tracks doing a box test at 100yds, I took it out to 625yds and got a first-round hit on an 8 inch target by using this chart! Of course, I'm going to verify the entire chart out to the ranges which I wish to hunt before shooting critters, but this is an excellent starting point for D.O.P.E.
Shane