1. I would say about 50% of my cels have come 
from Yahoo Japan--with the sheer volume there, 
you're bound to come across some great cels.  
After that, about 33% were from Anime-Taro (and 
being one of the first to an update).  The rest 
were private sales/trades and a couple from 
other cel stores (Ed Noonchester and Usagi's 
House).

2. Probably my most interesting story was from a 
private sale.  I received an e-mail completely 
out of the blue asking if I could price a couple 
of cels.  I said sure, and the guy sent me 3 cel 
scans.  Two were pretty mediocre, but the third 
was a real gem.  He said he had picked the cels 
up on a business trip to Japan.  I gave the guy 
the best appraisal I could, and offered to buy 
that third cel.  He accepted, saying that I had 
been the most honest out of all the answers he 
had received from other people.

Now, I was a bit nervous as well as excited.  
First, I had never heard of the guy before and 
he had no ebay history.  He wanted a money order 
for payment also (no Paypal).  I was hesitant to 
send the money, but the guy seemed honest and 
the payoff would be worth it.  It was, without 
question, one of the best cels I've ever seen.  

In the end, my gamble paid off.  The guy sent 
the cel as promised, and when I took it out of 
the FedEx box, I was absolutely floored.  The 
cel was even better than I had hoped.

I'm very lucky to have avoided fraud in my years 
of collecting, so I just wanted to share this 
story for people who have been burned.  There 
still are people out there who are trustworthy.  
And just so everyone knows what I got, here's 
the cel I ended up with ;)

-Graham