I picked one up at sears. This particular jack is silver on the outside, and the lift is red (got it for like $100 bucks on sale). I believe it goes from 3.5" to 18" or something like that. I was wanting to do what you are wanting to do - reach that front center point. Well, unfortunately, I still can't get to it, even driving up on 1 set of 2x10's. I don't have anymore 2x10's to drive up on, but I think if you had 2 sets of 2x10s to drive up on - you could get that front center point with this jack. I'm still a little weary about jacking one side of the car up so high - some folks have told me this is no big deal, but it just doesn't seem right - so I'm determined to hit that front center.
Hope this helps with your decision. I was going to change my oil tonight, but I have leaky front struts to deal with first - so I figure if it's going to the shop, I might be able to get them to work in an oil change.
Oh, and I haven't tried putting my GTP up with this yet - but if you want to know, I can try it out and get back to you on that.