As a mentor for the only all-girls team in Minnesota, i can say... don't let the boys hold you back! Get in there and create something you can point to from the stands and say "I did that".
And if any of the guys try to brush you off, tell them to look at team 2177 (
http://therobettes.com/Site/Welcome.html) - the highest seeded rookie in St. Louis in 2007 (leading their alliance in an upset in the quarters!), finalists in Minnesota in 2008 (one of the top 3 highest scoring robots!), and finalists again in Minnesota in 2009.
And as an FYI... the two freshman programmers on our team have ALREADY written the code for our kicker, and are working on the code for our hanging mechanism. Our returning members have been focusing on our drive train code and helping out the new members when they need it.