Striker, I must admit I think your set-up looks like my ideal next step. As an interim I could put my 5" MAK on a EQ6 + Skyscan, but the dream scope I desire is basically yours in carbon fibre and maybe am SBIG CCD.
Being totally inexperienced with astro photography I'd like to image whatever I desire
and not sure about focal lengths other than that of the 11" SCT.
Basically I read your reply as saying yes an autoguider will correct pointing errors, but unless your imaging hardware and software are smart enough to discard frames / pixels when the pointing is off (and most software isn't) you'll ruin your image if the pointing errors get to large!