Canded bacon, gun with unlimited ammo cheat enabled, iPod
But, you need Solid Snake's bandana for that. . . .
On-Topic:
Laptop with solar-powered battery charger, wifi, 8GB of RAM, 2GB of Video Memory and full keyboard with numpad.
Mk. 23 SOCOM w/Supressor
SG552 w/Supressor and foldable stock
Snake's Unlimited Bandana
Elephant Gun (Huge ass boolits)
Swiss Army Knife
SuperGun*
SuperArmor*
Console (~(for godmode, more items, noclip, etc.))
Regain
PEELZ!!(of course)
Francis+Chuck Norris as my body guards/human shields
and fuel-efficeint Metal Gear REX
*from Mass Effect(2)