Forbidden Donut

First things first.

Adobe Premiere 6.0
Adobe Photoshop CS
Adobe AfterEffects
Sony Vegas

Which of those programs would you use to layer a image onto a video. Like for example a picture of someones head replacing the actual head in the video?

Thanks in advance.

Also who is in on the Metal Gear Solid online beta?

I downloaded it last night but I've been getting a error, hopefully Konami will have fixed it at some point today.

Anyone playing GT5 Prologue online aswell?

Thanks people.