One thing to keep in mind is that ich is not nearly as serious as you might think.
I had ich pretty bad in my tank once, and I just let nature take it's course. Ich is mainly brought on by stress, and the more you fiddle with things, the more stressed the fish get, compounding the problem.
My neon and red-head goby had ich so bad they looked fuzzy, yet they both are still with me... in fact I didn't lose a single fish just by letting things go away naturally.
Your best bet is to simply keep them well-fed and as stress-free as possible. Like Brucey said, you can also try a higher than normal pH regimen and that will help as well.
Ich hasn't shown up again on my fish in over a year...
Mainly, just take a deep breath and realize that you're not dealing with that serious of a problem... not enough of a problem to get overly stressed about anyway...
HTH.
P.S. You might also try using the 'size' tags in your sig... you got a pretty long one there...
