RE: Blood Vessels
Any artery would work well for me, it doesn't necessarily have to associated with an organ but thats usually the easiest way to identify them. With respect to the gut and stomach and such they tend to be harder to find, but I don't care what you give me, I'll take anything you got. They don't even have to be long segments either, anything longer than 3-4 inches would be fine by me, and I can even dissect out things myself, hell I'd even love to go hunting sometime,haha.
Thanks for your help everyone
K