You can buy some at Coinabul, which has apparently earned a good rep. You can also buy some from me at Shire Silver
It might be worth noting that my product isn't intended as an investment, but as an alternative currency. Use Coinabul for investment grade purchases.
There are other options available as well.
BTW, I've been having some issues with my webhost shutting down the port I need to complete bitcoin transactions, so if you get an error, just use the contact page on the site to let me know and it can be done the old fashioned way (which frankly isn't difficult at all).