I need to make a standing dinosaur and I'm just trying to get some ideas of where to start!? Do you think I can do cake for the head, or RCT? Legs and arms the same? I woukd really like to make it as much cake as possible. Please give me your opinions! Thank you!

3D dinosaur cakes from the CC galleries:

http://cakecentral.com/modules.php?name=gallery&meta=search&type=full&search=dinosaur&album=46&search_user=

Standing dinosaur cakes from the CC galleries:

http://cakecentral.com/modules.php?name=gallery&meta=search&type=full&search=standing+and+dinosaur&album=8&search_user=

Easy 3D dinosaur cake how-to:

http://www.wikihow.com/Make-a-3D-Dinosaur-Birthday-Cake

http://www.instructables.com/id/3d-Dinosaur-Birthday-Cake/step1/The-Raw-Materials/
(Same as above, but opens in bigger windows.)

Sitting dinosaur from cuddly teddy bear pan:

http://www.wilton.com/idea/Happy-Birthday-Spike

RKT dinosaur help thread:

http://cakecentral.com/cake-decorating-ftopicp-6677707.html

If you find a cake you like, it'll be easier to answer the specific questions you have.

HTH