Welcome to the forums fairplay, good name too, we all want fairplay
I don't know about Slots Jungle, but my vague memory tends to put a slightly negative ringer to that brand...
I think i recall KasinoKing, one of the longerstanding members here, and an affiliate, recommending them only under the condition that you agree to their payment plans, which are pretty bad, even for the U.S.
Remember, this is a vague memory, and i could be totally off but i'm sure KK will correct me if i'm wrong
On your question about other casinos, the only places i play at which welcome U.S. players are 3Dice, which is a great place to play and hang out, and the Jackpot Capitol Group: which is turning out to be a gem in the world of RTG operators. (IMHO)
I also played in the CWC, and Inetbet, which are accredited here but were terrible in my own experience..
I don't exactly know where you are from, but Casinomeister just now has it's first Licensed U.S facing Casino, but that is for New Jersey..
Anyway, there are alternatives, and possibly more coming soon!