Exactly right. Regular mail to the US is generally expected around 2 weeks or less, and for rush orders, as I said, it can be as quick as 3-4 days (not even 4-5 as I first said - my mistake). I particularly favour that option, as Paypal seller protection eligibility calls for delivery confirmation, which is included in the 4 day delivery. Some international (UK, other overseas locations) shipping doesn't have the confirmation included at a reasonable rate for most people, so that can be about 4-6 weeks (with less than 2 weeks still an option if required/desired). I have shipped from Canada to Sweden with the package meant to arrive in 4-6 weeks, and actually getting there in less than 2.
In terms of receiving from the States, anywhere from 10 business days to a few weeks has been my experience.