There is quite a bit that I have there on that site kevinyoutube.com most is made for commercial licensing however I do have other material. You can sample on the site and let me know what you like and I will send your way.
As far as retro, its hard to say I have a particular track in that exact genre type however some of the older tracks have some of those aspects.
I wanted to design for facebook as well however I cant find any affordable space as you need SSL https and a dedicated IP etc all. That part is frustrating.
I appreicate you making an ajax example as I woudl like to make a trivia game. I made my first Construct game @ kevintown.net under the kevinwars1.0 folder. Its a very simple basic shooter game.
I wish there was a detailed tutorial on the ghost shooter game as well. i would love tosee how that works.