I used Sarai's fitting cheatsheet, which if you're thinking of making these is an absolute must read. I decided I needed a large waist adjustment, so I added an inch. It's not quite enough and perhaps with another inch these would be perfect. I'm happy with the fit everywhere else, there's not normally many wrinkles across the front at all, I think the way I'm standing is not helping!
The fabric I used is a stretch denim I found on sale for just £2 a metre, so it was perfect for a muslin. I didn't bother with the pockets for the second pair as I found them a bit impractical. I think for my next pair i'll try and add side ones instead, Sally Oh has a great tutorial for that here.
For my next pair I'm going to try a cotton twill in black probably and then when I've perfected the fit go for something more adventurous.
All in all though, for my first ever pair of trousers and my first real fitting challenge, they're not half bad. I do feel quite like Sandy from Grease though...