Laptop TV and DVD player

I would love to use my laptop for watching TV or playing DVD's in Suse 8.2. I have a Compaq Presario 1700T with a Pentium III 700 + megahertz and 300+ megs of ram, 40 gig harddrive. I would need to purchase the correct card or whatever for watching TV and purchase a DVD player. I am interested in maybe getting a usb CD/DVD player that is externally connected and that will work in Suse 8.2. I would like an inexpensive one as well if that is possible. For watching TV I was told to get the ATI ALL-in One Wonder or something like that. Is it possible to ride across country in a vehicle and watch TV on a laptop? If not, watching DVD's will do for me. Any ideas and suggestions about this will be greatly appreciated. Thanks, Marcia