Ok first off, this site looks good! I like that you didn't do anything with the buttons at the top (I hate accidentally clicking them and then having the page poof).
So concerns:
-Your homepage is 2.5mb download. That is way to high. I'm on a wireless N connection so I can't say it was slow, but on an older computer or a slower connection that is an issue.
-You have 2 javascript errors just an FYI
-sponsors should open in new windows
-your bottom 2 banners on the homepage violates FIRST logo rules
-terms of use page I would prefer to have a new window with the actual CC page rather than your page (but thats cool having a CC license.... I might follow suite...)
-on the homepage center banner I would remove the url (not a bad thing, just me), but i think if you had a much less 'intense' homepage (removing news and making it it's own page) you'd save a lot of space
-going through the site, I see a lot of copyright violations of the FIRST logo. see
http://bit.ly/9D8yUa
-jQuery!! <333333
-spelling mistake on the menu "Truductions to spanish"
-hall fame page is cool! Maybe make it modal?
Last thoughts: Your site is very good! There are just little things here and there to tweak and you should have one rockin site!!
---Ryan