(Unfortunately, I couldn't find any "before" pics. :/ but anyone who watched the series the entire way through should remember him from the later seasons; he was Mr. Ernst's nephew that came in after Ted left for awhile.)
He's currently a label manager at DFA records (also cofounder) and is married with a son.
At first I was like "Holy crap that guy is super hot. I thought Jake was cute, but I don't recall him looking like THAT." hahah Then I saw this pic, and I was like "Yeah, that's him alright." :D
Here's the article it's from, and some other articles here and here linked at the wikipedia (there's probably more out there on google).
Ahh, this is very cool, Jake was my favorite character/the best looking (him and Ted. hehe) in my opinion! hahah :D This reminds me of the time I found out that Pinsky/Blake Soper/Sennett from Salute your Shorts is now in Rilo Kiley. haha
I'm going to go check out DFA's stuff now (LCD Soundsystem and The Rapture are their best known artists), as I am musically clueless so this is the first I've heard of them. haha