Try refreshing, restarting your computer. F5. Make sure you have the lastest Java software downloaded. The website works fine for me, so the issue should be on your side, I'm sure it would work if you try again now. Also, Coinbase does not have low fees, I am a user, and the fees are pretty much the same with Electrum and all, and they are fixed as well.
One thing I like about Coinbase is the user interface though.
I remember they were doing a giveaway for signing up with them.
Do they still offer to really give you $10 worth of bitcoin when you register with them?
That would work out to only 0.001btc by todays prices.
You only get the free 10$ if your referrer buys $100 worth of Bitcoin, and your referrer gets the same bonus as well.