I'm finally buying a PS3, but I have some questions (60GB VS 80GB)

[SHMUPGurus]

Yay! I finally have enough money to buy a PS3, but I have a couple of questions before I buy a specific SKU.

The thing is, I really want to be able to play my old PS2 games. I've heard that the 60GB plays them all with barely any issues, but the 80GB can play a couple of them as well. I have some rare games like Gradius V, R-Type Final and Gradius III & IV collection. I'd really like to know if the 80GB can play those games ''decently.'' That's pretty much the only games I'm sure the 80GB could have issues with since they are either too rare, or too old (?). I don't really want to check for a 60GB since there's barely any difference anyway (both have the memory card reader, I'm guessing same CPU and GPU, etc.), and it doesn't come with MGS 4 and a Dual Shock 3.

Also, I've heard that there's another 80GB SKU that doesn't come with Metal Gear Solid 4, but does it include a Dual Shock 3 and is it backwards compatible?

Thanks in advance!