Welcome! It sounds like the Remicade is working for you! I hope that it gets you in complete remission and keeps you there for a long, long time! And yeah, UC is a tricky disease to treat...it seems that meds work very differently for most of us.
Symptoms began in November 2008, ~4 weeks after giving birth to my son.
Eased for ~3 weeks in December, possibly b/c of probiotic use?
Returned in January 2009 (with a vengeance), diagnosed with pancolitis on January 30.
Currently taking Asacol (400mg 4 pills 3x daily), Rowasa nightly, Culturelle probiotic, and Zoloft (25 mg).