need some help

Ok guys, I'm doing a presentation in my Music 101 class about Trip hop. I choose trip hop mostly because I love Massive Attack. I read the faq and it said the originators are Smith & Mighty, Dj Shadow, Portishead, and Massive Attack, and perhaps Tricky. Here's what I need. Can somebody who knows all of these bands well suggest for me one song form each to play in my presentation? Also tell me any other very influential bands in the trip hop community. I looked at the band list but there are far to many to mention. My e-mail address is

please send your list of songs there.

Thanks
Turbulance