If you are on a budget, try the modular belts from Decathlon. I got one two weeks ago (just £16) and used it for my first marathon. It's very comfy, and you can stick extra bottles onto it (also available there). The velcro actually worked much better than my previous Nike belt which had a buckle, and which forever loosened while I ran. The velcro just stays put, and you forget it's there.
The belt's pocket has two zipped compartments which fit about 5/6 gels (there are also some rubber bands on the outside that are supposed to fit gels, but my GUs didn't fit it well). It's a slight bit of a faff to get the bottles back into their holders, but it worked for me. Only thing is that the zipped pocket might not fit your phone... Mine's an iPhone 4. Good luck!
Hello all! I'm also doing the marathon this coming Sunday, and cannot wait. First one ever.
Do any of the old hands remember what the terrain is like? I'm wavering between road shoes, or light trail shoes. I don't mind a bit of mud on the way, but hate having to go over miles of tarmac on trail shoes.
Well, I've bitten the bullet and got a pair of Wave Paradox today (apparently the successor to Wave Alchemy, NOT the Connect mentioned above). If anybody's interested, ask me in a few weeks how they feel.