Only go for the equatorial mount if you really want to image. However, you will get frustrated with a modded toucam eventually... DSLR are much heavier than a webcam, so if you are set on astro imaging look at a HEQ5 or so. However, the heavier the eq mount the better it is and the less you use it (since it is heavier)....
If you want to look at stuff more, go the dob.
