Thanks, Notmeagain1 :) It would really help if I looked like that model..! :) But I don't 
BrockauLit, you're proably right. I have never dyed my hair and have lots of sensitivies, so would avoid highlights etc. I think you make a great point that it's the highlights and variations which give it texture. I also hate product on my hair and never use hairspay, so it would probably look flat and one dimensionsal. Thanks!
alltoomuchrightnow, yep, looking at it now it would add width to the face, so should probably be avoided for 'roundies'. I don't have a high forehead so much as recession on one side (which I hate) but this was addressed by the last hairdresser I went to who persuaded me to change my parting to the other side...such a simple thing but makes a difference and I don't know why I didn't think of it! Took ages to get used to it though. Fringes are great, aren't they? They hide a multitude of sins... Now, if I could just get one that would cover my entire face and still let me see 
I'll probably go with a bob and post here for opinions :)
Thanks again.