please take a look at this princess cut diamond and tell me what you think. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=10217&item=2639160485
looks good to me, the only thing that worries me a little is the depth %.
I am pretty new to this forum as well. I haven't been in the market for a princess, but I have seen quite a few.
I went to the site you posted and looked at the diamond. It looks good but I would ask if the diamond was treated in any way. I noticed that this diamond was certified by EGL. I would recommend finding out if the certification is from the NY location or Israel. I have read that EGL is not as strict as GIA grading. I also read that you should be wary of EGL certs from Israel.
The stone looked nice! The grade and clarity are good.