SyFy (and SciFi) Doodles by ComickerGirl, check them out she is a pretty good sketch artist.
This illustration by elfgrove is a pretty good rendition of the Warehouse 13 team.
Sheriff Carter (EUReKA) fan art by LostFirefly:
EUReKA – Sheriff Carter by LostFirefly.deviantart.com
Absurdly Nerdly 
that warehouse13 one is great!! i still can’t believe i missed the first ep of the new season. 😦
You can catch it on Hulu, that is what I did! And read my review here. I post a spoiler free introduction and then a spoilery review after the jump.