I need to buy a new laptop very badly. I need good multitasking, good DVD/Blu-Ray performance (can sacrifice Blu-Ray if necessary). Basically I need to be able to watch & interact with live streams using an IRC client and would like excellent YouTube/DVD performance. Gaming is not really my goal with this machine, so it is not necessary. Does anyone have a good recommendation for me??
Thanks in advance.

EDIT: I would like the best performance, multitasking, and video quality from a sub-$2000 machine... hopefully less than that though. I would appreciate your input.