I have just purchased a "new" Sherwood Blizzard through ebay, it was a "store display model". I have since done some research and to find out it is quite an older model. My LDC recommended to "play with it in the pool all you want but, before going on an OW dive it would be highly recommended to get it serviced due to the possibility of the o-rings drying out."
With giving the price that I did was a good deal. Then paying for S&H and getting it serviced.... I wasn't but about $10-$20 under a new one after my student discount.:sad:
However, the computer console that I purchased, through ebay, ended up being about $100 under my discounted LDC.

And my LDC has been most supportive of my decision to try to save money.
I would think that any reputable dive center would.
With hind site being 20/20 I just wish that I had taken a little more time to do the research before jumping in to quick. I have put a halt to my purchasing until I try others equipment, I have a great group of friends

with plenty of stuff that are more to willing to help.
It's very easy to get wrapped up in buying equipment when you want to get on with diving... I know, I did.