Good condition cart only - it's far, far too expensive to go for a boxed collection at the moment. Eventually I'll get hold of boxes and instructions for some of them but that's a long way off.
I'm spending a bit extra just now because my annual bonus is about to come in
As for titles, I'd like the following:
Banjo Tooie
Blast Corps
Body Harvest
Bomberman 64
Bomberman Hero
Buck Bumble
Conker's Bad Fur Day
Doom 64
Excitebike 64
Glover
Mystical Ninja
Mystical Ninja 2
Kirby 64: The Crystal Shards
Majora's Mask(sold my copy as a kid)
Mario Party
Mario Party 2
Mario Party 3
Mickey's Speedway USA
Mission Impossible
Mortal Kombat 4
Mortal Kombat: Trilogy
Paper Mario
Pokemon Puzzle League
Pokemon Snap
Quake 64
Holy Magic Century
Resident Evil 2
Snowboard Kids
Snowboard Kids 2 - a pipe dream for the PAL version as this only got a limited run in Australia.
South Park
Star Wars: Battle for Naboo
Star Wars: Rogue Squadron
Star Wars: Episode 1 Racer
Tony Hawks Pro Skater
Tony Hawks Pro Skater 2
Wetrix
Wipeout 64
So another 40-ish to go. Some are extremely expensive though - I expect it to be a good few years before the collection is complete, especially when I'm also picking off my SNES and GC lists.