Wow. Nice vid.
I have completed San Andreas twice(without cheats), once on my PC and oce on my PS2. You must agree that the last mission to kill 'smoke' and that 'cop' surely gets on your nerves. Its an awesome game though, nothing like it.
I haven't tried GTA4 as my PC is a bit shitty and i don't have an Xbox360 or a PS3.
Looks like you have modded your game by adding custom vehicles, the hummer looks cool