Went for the 18" frame and it's arrived today, perfect size for me. This is by far the most gorgeous bike i've ever owned. Bought from Rutland Cycles in the end who kindly price matched MTB Monster giving me £400 off. Unfortunately the box came undone as I was helping the courier unload and I nearly had a heart attack as the bike almost dropped 3 foot off the back of the lorry, managed to grab it before it fell though and thankfully there was no damage. The driver helped me inspect the bike and I think he fell in love with it as well! Now I just need to find a way to break the news to my wife that I bought yet another bike when she comes back home later xD