Franz - That sounds like an interesting run. Well done on beating your time from last year.
Bexi22 - I always stay in Montmartre. Mainly as I'm a creature of habit and I found a decent cheap hotel there with access to the start/finish area via a short Metro ride. It's also easy to get a direct Metro out the expo if you wander along to Pigalle Metro (line12).
Since it's your first marathon I'd look to find a plan that best works for you in terms of running experience and how regularly you'll be able to train. All marathons are a learning experience, but in particular your first will teach you a lot about what works for you and what doesn't. The Hal Higdon plans are common starting steps for many, as he offer varying plans depending on your starting fitness level Hal Higdon Training
That's a fantastic time for your first half. There's certainly speed in those legs.
Mandydebs - Welcome to the thread! You won't be alone in Paris if you don't want to be. There are plenty of meet-ups that weekend, and as someone who always travelled alone to races before running Paris for the first time in 2012 I can easily say that there are great friendships to be made on here.
Franz - Loch Ness is a good event. I'm sure you'll love it.
Christopher - Fantastic PB in Amsterdam. Well done! Enjoy your well earned rest week.
Nells - That's an interesting one. I'm still on my first hand for finger counting Paris, only just, as this'll be number five for me. There must be one of the regulars that's done more than me.
Franz - Good luck with your trail run this weekend. I have one the following weekend. That Antonine Wall Trail Race.I'm also hoping for fair weather, but this being Scotland at the end of October I'll settle for anything that isn't gale force winds and torrential rain.