An 8" or a 10" Dob is an excellent start point for any newbie to this amazing hobby/obsession. Even if it isn't what you finally prefer, if you buy second hand ( check the for sale stuff on here ) it is easily sold on as you climb the inevitable upgrade path we all aspire to.
Good advice from previous posters, check the thread as suggested above and get Stellarium, it's invaluable and free !!
OH ! and hey !! ...

Good to have you. Ask anything and expect everything.