Omar Rodriguez fans, what's the best solo album to start with?

For those of you who don't know, he's the guitarist of The Mars Volta (Though he has a lot more cred than that). Me and some guys were amazed by his improvisation during The Bedlam tour, and his style is very intriguing. I was looking at Absense Makes the Heart Grow Fungus as a possible first... any other suggestions? It's part of a gift for someone, but of course I'll be adding it to my library first (haha), thanks.