Try the Sniper 101 videos on You-Tube, the guy is kind of a goof, but he is pretty in depth and he also gives some decent real world advice. He has many videos covering all of the how-to-long range questions both newbies and experienced shooter may ask, I have been shooting long range for about 3 years now and I still found a pile of useful information in his videos so far, I like to stream them over the car stereo via sync jack while driving and I can just listen and think. There is a lot of information to absorb, but I believe the optics video are somewhere around part 18 or so...... he will give you some ideas and things to think about before buying an optic and a little further on, he gives some kit suggestions that you may find helpful.
Magpul also released an excellent video called "The art of the Precision Rifle" that you may be interested in viewing, lots of good information out there and honestly, if your not too gullible, you tube is an excellent resource for it.[/QUOTE
Thanks, I watched most of the magpul video, its got good info, I will look up the sniper 101 and see what they have to offer, cheers !