I picked up a Breaker Port Finish yesterday. Their straight bourbon is quite decent for a craft distillery, and is starting to become more widely available.

I have to say, of the port finished bourbons I've tried (Angel's Envy, 1792, a few others), this is the best. It's not mind-blowingly sweet, but definitely has a ton of port flavor to its nose and finish.

My wife even liked it when offered a sniff (usually, she says, "Smells like Spring Break! Yuck!" to any and all bourbons). She did not repeat the mistake she did with a Filibuster triple cask finish I offered her a while back, though, and actually sip it; having not built up a taste for straight liquor, she nearly exploded at the high proof Filibuster. The Breaker port finish is around 90 proof, IIRC, still more than she'd be able to drink.