three moons

this is really much more I can get from my Bresser 70/700 with 12mm eyepiece + 3x Barlow.

I should connect  the webcam soon, but I am curious how to attach it to the telescope.

Don't use the barlow, with the 12mm eyepiece you will have about x60 which is enough to see two bands and four moons, just much smaller. Trying to view at x180 with this scope is too much magnification, even under ideal conditions.

The webcam goes in place of the eyepiece, you can buy cheap adaptors which screw into the webcam instead of the lens.