No.
It doesn't work.
I wouldn't buy. Would you?
You seriously need to examine other site's with similar products.
I would be extremely surprised if a single person makes a purchase out of 2000 unique visitors, simply because of the design.
Seriously, would you buy from your site? Really ask your self this.
The only advice and best advice anyone can give you at this point is, since you have been a power seller on ebay since 1997 as you said, then you should be able to afford a professional web designer.
If not, start completely over from scratch, only after you see what your competitors are doing.
Example.
It's clean, vivid, striking, inviting and professional.
Your's is jagged, rough, bland, ghetto and circa 1996.
All opinions are based on comparison to a similar subject, that is how I based mine.
So before you do anything, compare your's to others.
I know I can be mean and direct,
but I don't beat around the bush or say things you want to hear.
Just what is.