OK guys, I can now post on here officially as a 550 pilot!
Got my bird the other day, and put the suggested ebay landing gear I had already ordered on it right off. Took a little bit of time trying to figure out the excellent instructions on those legs!

I haven't put the gimbal on it yet, and only made one flight with it so far to break it in. It was way too windy the day it came in, and now I am on a 7 day stint of work.

It seemed to fly really well, but it only flew for 8-9 minutes max as I recall, which I was thinking it would fly longer since it was almost naked without the gimbal and GoPro on it. Maybe doing the compass dance and initial startup took a little out of it.
I will probably bug you guys with some questions along the way, hopefully not too much since there is a lot of helpful info on here already. I will probably put some LED lights on it before long. Speaking of LEDs, is there one that can go on that is more visible than the little one on the USB hookup for letting you know when the battery is getting low? Or do you just go by the readout from the iOSD mini? It would be nice to be able to see something like what's on the Phantoms. I did order one of those small battery voltage readers with an alarm on it, but my hearing isn't what it used to be and might not pick it up from far away.
One thing I was a little concerned about is the attachment of the GPS puck. I could not get all four screws to go in so that it pointed straight forward. The video from Helipal showed using only two screws to attach it while leaving the other two points without screws in them. Is that going to be a problem? Maybe I'm just being overcautious. I do have a folding GPS holder ordered.
Also, I've been looking into battery chargers, since between this and my Phantom my collection of batteries is growing. Any suggestions that won't break the bank?
Anyway, looks like the 550 will be a lot of fun to play with. Thanks guys.