The EOS 100 is definitely working! And so are you, I'd say. Great selection. Numbers 2 and 3 hit the spot for me.
I use Superia 200 as my every-day film, but there are lots of opinions. I tried out Ektar and Portra and preferred the latter, but it was only one roll of each and I was trying to make my Pentax ME follow my version of the Sunny 16 rule, so I don't think it was a fair trial!
There's a sticky at the head of the forum with info on labs, including a link to a Google Docs spreadsheet with some cost comparators. I've used several, but tend to go to Photo Express for C41 process and scan as fast and cheap. Many use Peak, Dark Room or Club 35...
Looking forward to more!