Ok the difference is the first one is on an equatorial tripod - pic 1
http://www.andrewscom.com.au/images/...ctor/gs500.jpghttp://www.andrewscom.com.au/images/...nian/gs880.jpg
- that is if you line it up properly turning the handle will keep the object in view {it allows for your latitude}- the second type - pic 2(or dobsonian ) works by you pushing it either up/down/across to keep items in view.
To start with the Dob will be easier to use - you just take it out & push it to what you want to look at. The EQ mount takes about 10 mins to setup and can be fiddly if you don't know/ have not been shown how to use it properly.
The DOb also has a slightly bigger mirror - meaning it will take in more light from faint objects (so you will see slightly more)- the magnification will be the same though.
Lastly if you want you can mount the dob on EQ mount later on ( & choose a more sturdy one than the aluminium from pic 1)- you just buy the mount separate & get a hold of some rings to fit around the tube. You would only do this if you were interesting in taking photos/short movies of the planets (really only jup/saturn) & moon