Favorite small cap index fund

[skunkworks]

I'm debating whether to put my money into a small cap index fund. Does anyone have any recommendations? I'm looking for a no-load fund with low maintenance fees.

Also, if there's a good reason to NOT put my money into a small cap fund but rather into something that tracks the S&P 500 or the entire market, I'd like to hear why. I'm not interested in ETFs because I want to buy more equity in the fund regularly and can't justify the commission for each transaction. God bless Scottrade and their no transaction fees for buying mutual funds. [img]/images/graemlins/grin.gif[/img]