[youtube]http://www.youtube.com/watch?v=fWI2OPcabtk[/youtube] [youtube]http://www.youtube.com/watch?v=nqp0AJe38Ec[/youtube] [youtube]http://www.youtube.com/watch?v=OQr5clFsZMU[/youtube]
Also, I found this part very informative: [youtube]http://www.youtube.com/watch?v=lkxwyyQf-Lk[/youtube]