Welcome, Zamba.
Everything you are asking for is already written here
www.cashbaby.net/sports-betting/bookmakers
It doesn't really matter which one of the listed bookmakers you choose. You'll be in safe hands. But it depends on the sport you want to bet on, if you'd like to bet live, if you'd like to bet larger stakes... There are many options and there isn't one universal bookmaker to satisfy all your needs. Pro's always gamble on several different accounts in order to take the best odds for their selection. But, if you're a newbie, I'd go with something smaller and easier to understand, like Expekt.
Good luck! Let us know how you're doing after a while!