The segment I'll most likely use will be from the 0:41 second mark, to allow a single bar of guitar and bass before the machine starts when the drums come in.
The next song that sticks out for me is Lets Go Surfing by The Drums:
This ones fit perfectly for what I intend to use it for, the only problem is that its been used a few times in existing ads to give an upbeat/quirky feel. I'm still trying to decide whether this validates my choice or makes it the clichéd. If I use this I'll most likely loop the first few segments to try and create an instrumental version of the intro and first verse.