Hey all,
I've just recently started purchasing knives over the internet, but so far I've had really good experiences with these places:
http://soonerstateknives.com/ I bought two Benchmades online-shipping was really fast and prices are the lowest overall that I could find, but their selection is somewhat limited.
http://www.sagecreekoutfitters.com I actually called and spoke with Scott twice regarding Ranger knives and others. Great customer service and again, very fast shipping.
http://www.grecoknives.com I just ordered a 6" Scagel from Mr. Greco yesterday and without even seeing it I can guarantee that I will order another of his knives. I really like his designs, his prices are great, and to top it off he seems like a helluva good guy.
cravin, aside from these three sites, I've browsed through most if not all the sites above. While you will probably find better prices on the web, don't underestimate the pleasure of finding a good knife dealer in your area. It's a lot easier (at least for me) to part w/ a good chunk of money if I've had a chance to see what I'm buying first. Case in point, I'd read so much good stuff about the BM mini-grips on this forum that that was one of my first online purchases-at about the same size as the Spyderco Centofante III that I love, I didn't think I could go wrong. But I was buying it for work and since I wear thick and often dirty&oily gloves (and have big hands to start)it was way too small and fragile for what I needed it for and I could have put that $50 towards a larger model by taking the time to handle it first. Aside from the hands-on, most knife dealers that I've met are in the business because they like their products, and the extra premiums you pay shopping person to person are minimal once you establish a friendly relationship.
Good Luck,
Walter