I bought my regs, BCDs and dive computers on Ebay. I had the regs and BCDs serviced and have upgraded my computers (gage mounted to Mares Genius to Cochran Commander to Cyber Aqualand NX) I was able to resell what I didn't need anymore. I just bought a Parkway 7mm Sharkskin semi-dry for half what it costs and the suit looks and smells new...you can also by new gear, I got 2 (one for me and one for my wife) 3mm full wet suits for less than the cost of a single one in an LDS and a 5mm for half price as well. I paid less for the 2-3mm than I paid at my LDS for a single tropical triweight. I bought mask, fins, snorkel, tropical triweight dive skin and weight belt at my LDS as part of my class. I picked up a dive bag at a outlet store for 1/4 the price in a LDS.
Cameras...I got a Sea and Sea Motormarine with 2 strobes for $130, a Nikonos IVa with 2 strobes for $250.
Ebay rules.
My used equipment has 50 dives on it, so far one LP hose and one O-ring is all I have needed to replace.
In total I have:
2 Sherwood regs, octos, gages (used Ebay)
1 Calypso Extra Large BCD (used Ebay)
1 Mares Medium BCD (used Ebay)
1 tropical triweight (New - LDS)
1 lycra dive skin (new - ebay)
3 masks (my wife didn't like her first one) (new LDS)
3 masks (used, came with BCDs)
4 snorkels (2 new LDS, 2 used)
6 dive computers, 3 have been resold (kept a resource gage mount, the Cochran Commander and my new Cyber Aqualand NX with comm unit all from Ebay)
2-3mm Neosport wesuits (new-Ebay)
1-5mm wesuit TommyD sportswear (new-Ebay)
1-7mm Parkway Shark skin semi-dry suit (used-ebay)
1-1/4 inch (5mm) crushed neoprene Posedion Unisuit drysuit (used-Ebay)
1-Titanium dive knife (new LDS)
1-Dive watch sport style (new LDS)
1-Dive watch dress style (New - Mall)
1 rolling samsonite dive bag (new - outlet)
1 mesh Akona dive bag (I use it all the time) (new - LDS)
2 regulator bags (New LDS)
1 Sea and Sea Motor Marine with strobes (used Eaby, resold)
1 Nikonos IVa with two strobes (used Ebay)
1 master strobe cord (used Ebay)
1 Reefmaster 3 megapixel digital with stobe and bag and 3x lens attachment (used LDS)
1 80L Aluminum tank (new LDS)
3 pair fins (new LDS)
1 weight belt with about 20 pounds misc weights (new LDS)
1 pair reef gloves (new LDS)
1 pair 5mm dive gloves (New LDS, but less than half retail price)
1 pair 3mm dive booties (New LDS)
2 pair dive socks (new LDS)
All for under $2500.00 total (once you subtract the stuff I resold). I got the Cyber Aqualand NX for $361.00 with comm unit ($116.00) total $477, for the same thing new, with 25% off, $961 through Zales (they had the best deal, not the LDS)
One suggestion, join a bidding engine service, I use
www.esnipe.com
For life support stuff, get it serviced and it's good as new, make sure they check the hoses and O-rings on the hoses during the servicing. Around here servicing is about 30 bucks.
I always check Ebay first unless I just have to have it right now (got a brand new tank, first inspection and airfill for $130 at American Pro divers in Crystal River...hard to beat that once you throw in shipping costs)
I dive everywhere from Lake Lanier, Ga (last weekend, 45 degrees, used the parkway) to Crystal River (72 degrees, used the 3mm) to Grand Turk (used the tropic Triweight) so I need the range of equipment I have. Gives me the heebie jeebies to wear a full rental suit...or breath through a used reg (SARS, Avian flu, hepititus no thanks!)
I sent an article to the site here on buying used equipment on Ebay about a month or more ago...never got a reply from them.