If you thirst for power, 338 Lapua Magnum may be one of the first things you imagine. Savage announced their entry in to this massive cartridge's rifle line with the Savage 110 BA. This rifle looks to be an extremely accurate long range shooter with a relatively low price point (low compared to most other .338LM's) under $2,267. Check out American Rifleman for their review
Sometimes you can find a Remington 700 in 338 Lapua Magnum
laying around for a little bit cheaper if that's your thing.