Not that I use them, but I believe ScotTrade is pretty competitive in terms of cost for mutual funds.
Thanks vulture. Just going through search engines, websites, etc, I also found that TD Waterhouse and Ameritrade offer mutual funds - but at higher prices per transaction. Same for the likes of Fidelity, et al. Foliofn is cheaper but they only have a few hundred of them, not enough. Any other suggestions?