Ezek! Great to have you on board.
If Jupiter looked that big and detailed in my 6" telescope - I would stay blissfully happy knowing I would never need to upsize! Don't get me wrong, I still get great views with my 6" - just nothing like that.
Have a look at this link
http:///www.telescope-simulator.com/index.php?option=com_content&view=a rticle&id=45&Itemid=57 for a better representation of what image sizes to expect out of telescopes.
By the way, if you haven't already got it, The Astronomy 2010 is a great book to have on hand - it tells you month by month the events in our skies to look forward to, star maps, and a wealth of other information. Andrews Communications have it
http://www.andrewscom.com.au/site-section-10.htm for $20. Also I recommend a Planisphere - they're around $15, also from Andrews. It comes in very hand for a beginner learning the skies. When I was first learning (still am actually!) I used get confused when the constellations changed shape during the course of the night and it used to confuse me senseless to find anything! You just rotate the wheel to the appropriate month and time, and it will show you the sky in real time. Too easy. Also handy to have when you don't want to be juggling maps. Some computer software helps too - Stellarium is free to download.
Aside from the Moon and obviously you haven't seen any planets yet, but have you been able to see any beautiful star clusters or nebulae yet? If you're interested, and once you have gotten yourself some star maps, you can pm me and I will give you a short list of some easy to find, spectacular clusters and nebulae to get you started.