Here is what I have for my MacBook Pro:
Magic Mouse
BT Keyboard
MDP -> VGA adapter
VGA cable (would prefer two of these, but one is sufficient)
320 GB HD with two partitions, one set to HFS+(mac-formatted), the other FAT formatted
17" Monitor
32" TV
Speakers
Wacom Tablet
Sorta over-kill, but I like it. I have 4 different ways of using my laptop:
Portable - just the laptop, possibly headphones
Portable Station - laptop with keyboard and mouse, possibly HDD
Work Station - Laptop with keyboard and mouse with external monitor, speakers, tablet, and HDD
Media Centre - Laptop + TV and keyboard/mouse . I plug vga cable into TV, as well as 1/8" audio cable
What I do is possibly overkill, but I am very happy that I can do all this with my MBP. I would recommend at least part of this if you would like to use your MBP with a TV.