I live in America and I've been wanting one a long time too! I "expressed my interest" when it was released, and recently my number came up and I was able to order it, but it hasn't shipped yet. THere is still too large a backlog to get one quickly- if you order now, it will probably be a few months yet before you get it. There are only two R-Pi distributors, regardless of where you live in the world, RS/Allied and Element 14/Farnell (and their respective local subsidiaries).
I have one on order but don't want to wait months, so I got one from ebay last night it should be here Wednesday . I paid 75 dollars buy it now kinda pricey but I'll have one in a few days. If your impatient like me I'd say go to eBay you'll find a bunch to choose from.
I ordered mine through element 14, back in april. Just got it July 13th. After taxes and shipping it came to 44 usd. I'm sure lead time is way down now that they've increased production. From the tracking number it didn't ship from the uk.