Keep an eye out Dick's; I saw ones at both Bel Air and White Marsh locations in the past couple weeks (both were sold since then). They were going for $1600 or $1700 i can't remember exactly.
Depending on your budget, I absolutely love my S&W 460 in the 10.5" barrel with a compensator. It has no problem getting out past 100 yds with a scope and it also shoots 454 casull and 45 LC
Fastenal and Grainger both carry 5-40 taps. Fastenal stores are all over and there's a Grainger store in Rosedale
http://www.fastenal.com/web/products/detail.ex?sku=0326658...