Hi fella, another two obserers to add to the congregation !!
As for viewing through the finder, you will get used to the back to front, upside down thing, although the first thing i would be buying could be a RA correct image Finder, i have one on my 12" and it saves my back no end of trouble.
There are loads of people here only to eager to help, so chime away with any questions.
And now Saturn is setting, Jupiter is starting to crawl into the evening Sky, the views at the king of planets through you dob should be excellent. I can see cloud belts through my Orion ED80.