I've been very tempted with getting an 8" MakNewt for a while now for attaching the 300D to. I've got a NextGen 0.5 FR coming for the SCT for use with the SBIG, but there is just something about using an 8" scope (not refractor

....in my dreams

). They are a good size in aperture, not too difficult to manage weight wise on a mount and you still get a decent focal length for the f ratio.
Though a 10" is really tempting