Another site you can peruse is
http://www.kananaskiscamping.com/
Are you tenting or RV'ing?
http://www.mountkiddrv.com/
Actually Mount Kidd has a tenting area so even though it says "RV" in the name, you can look that one up too if you're tenting.
If your heart is set on staying near Banff park, then Bow Valley p.p. and Kananaskis country/Peter Lougheed p.p. are solid bets and there are plenty of campgrounds to choose from in either.
If you would prefer to be closer to Jasper then you should really go to Mount Robson p.p. (in BC.). It's a fantastic place to camp.
HTH
