Awesome, good to hear it man! And welcome to the forums.
My wife and I are waiting on our '07 SKY Redline, and it will be in that gorgeous yellow color that you test drove.
We're hoping that we'll get to place our order for it this week, and if we're REALLY lucky, it'll get here for Christmas. Probably will arrive the week after!
So far, there aren't very many mods for the Redline model. Kappasphere.com has a good number of visual mods for the SKY in general, and they are working on getting a hold of the performance ones as well. I have not heard of any intakes, exhaust, manifold, or suspension upgrades yet. Then again, the car has only been available about 2 months. I would think that by the time you get yours, there should be a fair amount of aftermarket products by then.
Luckily, with the SKY Redline, the sister Solstice GXP will really drive the market for aftermarket parts, so a lot of them should work on the SKY as well. It's a good thing, because as we've experienced here with the ION Redlines, Saturn isn't very high on the list for aftermarket companies to make parts for.
Good luck!