I did this year's race and it bugged me that this is probably the only Ironman without it's own website outside of it's page on Ironman.com. Most of the important information is there, but there is a lack of fancy pictures and other details.

The swim start is a "time trial" start, in which 2000ish people stand in line and jump into the water one after the other (plenty of videos of this on Youtube). It probably takes 45ish minutes to get through the line so I'd recommend getting to the swim start a good 30 minutes (maybe more) early if you wanna get a good spot in line.

As far as the heat and humidity go, I didn't find it to be much more serious of an issue than discomfort, but I expected it and it was similar to the weather I trained in. It did get to me on the beginning of the run because the first part of the out-and-back has NO shade. By the time I got back on the end of my first lap, the sun was starting to go down so it wasn't as torturous. But I guess if you plan to finish the race in daylight this could be much more of an issue, but then again being capable of finishing in daylight might make it less of one. Either way keep hydrated.

Finish line is pretty awesome. Same rock star treatment that the spectators give you at any Ironman finish. Within 10 minutes of finishing I was with my friends at TGIF Fridays (20 feet fom the finish line) with a beer in hand and bacon cheeseburger on it's way.

Here's my race report, for what it's worth. There are plenty of others to be found as well.
http://trifuel.com/forum/15634/imky-mopbop-perspective-kind-of-long

It is put on by WTC, so has their standard of website, while the basic website that NA Sports (who does IMAZ, IMC, IMCDA, IMUSA, IMF, IMWI) is a different group. I'm not saying it is a good site, but just that it's not the only IM like that -- here in North America we have just come to expect the NA Sports look and feel.

Kylie - C'mon, tell the truth...you only like IMKY because they were nice enough to name it after you. :-)

'I (heart) KY' can be interpreted so many ways ;-D
But, since I know you, I'll leave it alone.

Yeah, that shirt pretty much just rocks. :p

That pic was at our rehersal, and someone actually asked "Did he know it could mean Kylie when he got it?" after hearing he found it while with me....