Hi people.
LOL, I sure surprised myself too. When I started searching for a car, I didn't even have the E60 on my list of cars to search for. It was one of those things that just happened--test drove a 550i and fell for it. So when I lucked out and found a killer deal on a low milage 545i that was within my price range, I guess it was a no brainer.
Been driving the 545i for a few days and I'm having a blast with it. Sure, it's no Porsche but for a sedan, it sure handles amazingly. And the 325hp/325tq v8 really does pull you back into the seat. The SMG transmission shifts very well, very fun to play with in my mind. The iDrive is not bad, I'm getting used to it, and as I become more familiar with the system, the more I like it. The 545i is a wonderful cruiser, yet can still hold its own when I'm in a sporty mood, down shift a gear or two and this boat of a sedan can fly. 33k miles, sports pkg, premium sound, navi, and a v8 for 21k...it was the most logical choice.
I didn't abandon my dreams of owning a Porsche, rather, just postponed. I thought long and hard, and decided that it would be unwise of me to pick up a Porsche while I'm finishing school. If any large unexpected maintenance or repairs were to occur, I would be totally be screwed--and carless.

Although I really wanted a Porsche, I think the wise choice was to hold off until I was more financially stable.
Hope this helps. Enjoy your car, everyone, whether it be Porsche or BMW.