I have a great cel of Keisuke and Taka on eBay 
ending tommorow.  It is from OAV II ep 6 when 
Keisuke is yelling at Taka for giving up on 
Miaka.  Very emotional scene, and, err, the shot 
looks quite a bit yaoi-ish (sadly, that was what 
originally got me to buy it ^^;;)  It is an A1 
key cel with unstuck matching sketch.  I'm sure 
there are some people with money left after the 
Taro sale, so visit the link above, or eBay user 
lady_brick, and take a gander.