Yeah, I love my prime! Managed to get mine for £45 delivered just before the prices shot up! I used it last night at a meet so I'll see how the pictures came out when I get home.
I also have a Sigma EX DG 24-70mm 2.8 throughout - What an incredible lens! Portrait shots with that thing are just perfect.
Wide angle, the Sigma EX DG 10-20 is very good! Smallest aperature is f4-5.6 though..
