This is looking pretty good.
I hear you all saying it is an updated engine and stuff, but they have done it well. GTA3 was great, and VC attempted to improve on that. Most think they succeded, some think not, either way the game was good.
Now with this SA, they will try to push the length and enjoyment over the edge. I have a feeling this will be the last GTA game on the PS2, so I think they'll try to do a good job.
Plus it has lots of neat features that everyone wanted in VC, and they get them now. If it is as long as I'm expecting it to be, this should be loads of fun.
Give it a chance, maybe this will be the game to beat for all other wannabe GTA copiers. Who knows? It'll atleast give us enjoyment!
*off-topic*
Games on my current PS2/PC wishlist:
GTA:SA
Starcraft: Ghost
Killzone
NHL 2005
Half-Life 2
Doom 3
This year is looking better and better.