Yeah, St. Bruno and Condor are nothing like the stuff Samuel Gawith puts out. More like some of the Gawith, Hoggarth & Co. offerings. Good VA/bur blends, Condor featuring some Dark Fired Kentucky as Jammer mentioned, with a lightly floral topping. While there aren't dead-ringers available, there are enough blends available in the US for cheaper than they are in the UK that are similar enough to these blends to not necessitate ordering at the expensive UK prices and having them shipped over seas, unless you just really want to be able to say you've had some (I totally understand that!)
I'd say if you loved the Condor, GH Dark Flake and Peterson's Irish Flake are both good candidates for substitutes, although Irish Flake has none of the floral characteristics to it. For St. Bruno lovers, GH Best Brown #2 or Kendal Flake might be good choices.
I should qualify that: at least as far as internet retailers are concerned which operate within the US and the UK respectively!
Example: 50g of GH Best Brown #2 at Smokingpipes.com is 9.71USD, and 50g of GH Best Brown #2 at mysmokingshop.co.uk is 9.95GBP, or 15.39USD
I maintain that in my experience and so far as my palate is concerned, BB#2 is fairly similar to (though again, not a dead ringer for) St. Bruno. Likewise GH Dark Flake has some similarities to Condor.
They are all good tobaccos and have their differences, and if you have your heart set on Condor or St. Bruno, then some of the similar blends available in the US aren't perfect matches (they were never intended to be anyway) and may not be quite what the doctor ordered. However if you're fine with something just pretty similar, then there's no reason for us Americans to pay much higher prices AND overseas shipping just to get a packet of Condor or St. Bruno from Mr. Snuff. Now if trades are established between members, that may very well be worth it!