I agree, fun mode is the best way
I have a few suggestions for USA newbies on one of my sites, based on what games I personally like:
Rival Gaming:
Video Slots: Best of Luck, Fantasy Fortune, Pigskin Payout, Cleopatra's Coins.
Video Slots (50-line): Astral Luck, Fast Lane, Lion's Roar, Tycoon Towers.
iSlots: Baby Boomer's Cash Cruise, Fixer Upper, A Switch in Time, Spy Game.
iSlots with True Skill features: Hole in Won, The Back Nine, Cosmic Quest.
RTG: Aztec's Treasure, Fruit Frenzy, Ghost Ship, Hairway to Heaven, Lock Ness Loot, Paydirt, Rain Dance, The Nice List (NEW), Triple Twister.
NuWorks: Babushka, Catch of the Day, Red Raiding Hood, Silk Caravan.
A lot of casinos with these games will also give you a free-chip to try them (especially Rival casinos) - so you can "try for free - win for real" if you get a lucky string of wins
KK