Canon Super G What Canon Digital Camera Body Do You Recommend To Fit My Sigma Zoom Lenses?

What canon digital camera body do you recommend to fit my sigma zoom lenses? - canon super g

I have a Canon EOS Rebel G, which came with a 28-80 mini zoom macro and super macro 70-300 ..... I get a digital that I can still use my recommendations on.Any lenses? Would it be cheaper to just the body? In view of $ 500 range.I a pro, but the hope for a good camera I know that it will take.