Yo Spiff

I tend to prefer Specialized helmets. They seem to fit my head better than the others I've tried. You might also consider getting a wicking cap to go under your helmet, often called a "do-rag". I like the headsweats shortie. I started wearing them last summer when my wife complained that I was returning from my rides with tiger stripes on my forehead. I've found they do help. Prior to using them I would find my head would start itching on a long ride. That's a rare occurrence now, since I started using the sweat-wicking liner caps.

Saddles are a tough call. Everyone's butt is different. That Fizik looks like a good deal, however. Many bike shops have a gel-filled bench that you can use to get a measurement of your sit bone width. That can help narrow the choices, but it's still a very personal thing.

Check some of the for trade threads here on BF. You may be able to get a steal on a saddle that didn't suit someone else.