Got the machine in my sig:
i7 2.66
7200RPM 500GB HDD
Hi Res glossy screen 15"
I actually got it a few months ago and the 2.8 wasn't an option. I may have got that if it was available as you can't change it later. Next year I will get 8GB ram and an SSD, hopefully an Intel G3 300GB. I also got the other week a copy of 64 bit Windows 7 Home Premium OEM

, kinda Christmas pressy to myself. I use it for bootcamp fro some games and was using 32 bit XP Pro and figured I come into the modern Windows era haha.
This is my third MB Pro, the first one was the old style and I just hated the keyboard so I ditched that as soon as the unibody's came out but I only got the 2.53 and really wished I got the top end model, I also went through 3 of these before I got one that wasn't faulty!!!
Anyway I got my current i7 as I wanted the auto graphics switching and the core I CPU and I knew I wanted the top end model this time! The higher screen res is also very nice.
My machine is just for my general use and I have no regrets getting the top end model. I was thinking of selling it and getting an iMac because of the gaming performance but I was just being stupid plus I cannot afford the top end iMac with the SSD and HDD which are a right pain to install. Plus I can't lay on my bed or sofa with a 27" iMac!
If you can afford to max out the computer then do it, you can alway's buy the RAM and SSD later like me too if it's a laptop Mac.
As for glossy or matte, I find that is alway's personal preference or required due to where you use the computer like outdoors.