Quoted:
try an internal style of kung fu... tai chi, hsing yi, or pau kua...
View Quote
seconding that, but with a qualifier.
Nearly ALL styles contain grappling techniques - some just emphasize it more than others. At high levels, even tae kwon do (if not totally sportified) practitioners study throws and holds.
Let me stress, befoe I go on: don't be focused completely on the "name" on the sign. The instructor and the training environment is everything. Ask to watch a class or a few and see if that is what you want. Watch the more experienced guys and see if that is how you want to be.
I quoted and agreed with mangu67 becasue the odds are that a Chinese style - even the "external" styles, will offer you plenty of what you are looking for. Of course, the "internal" styles will emphasize it a lot more. This kind if thing really defies categorization, so again - visit the school.
As for non-Chinese arts that focus more on grappling and "internal" techniques, you may want to also look at the Japanese art of "Aikido" or its Korean equivalent "Hapkido."
As for Judo, be aware that that is a sport, not really a martial art. Ju Jitsi is essentially the practical side of Judo (I beleive Judo the sport derived from Ju Jitsu). Still, the falls and SOME of the throws you have learned apply universally - but you MAY have picked up some bad habits.
There is also the immensely popular Brazilian Ju Jitsu - but, as with anything "popular" there are more BS schools springing up than good ones.
Good luck. Just remember, there is no policing agency that can stop any schmo from declaring his own style or variant and opening up a martial arts studio.