Welcome to HealingWell, and you are right, this place is great.
You'll find out that UC is really a personalized disease. What helps one person, may not be effective for others. Lialda is basically the same thing as Asacol, just a different time-delivery mechanism, plus it is a lot stronger which makes sense since you only have to take once (or twice in your case) a day.
Have you thought about adding a probiotic? A lot of people have had success using them as a supplement.
36 y.o. male
Diagnosed w/ moderate UC in May '06
Meds & supplements:
Asacol, Florastor, VSL#3, Wellbutrin XL, Prozac, multi-vitamin, Allegra, Lialda, Colocort, Prednisone, flaxseed oil, L-glutamine.