Has to tackle my nearly chin length thick (thinned down by hair dressers but still stupidly thick!) mop. I quite fancy waving it a bit as it's naturally wavy anyway (but in a bad wavy way), do a pair of straighteners need curved edges to wave? Any recommendations?

cheers

Curved edges do help when curling with your straighteners. No harsh crimped bends.

I use both the inch wide GHDs and the Karmin G3 straighteners for waves.

I fell for the hype and bought GHD's but they were not that great, my Babyliss ones are way better.
Babyliss also do a Diamond Waves one which is a curly wand and my daughter-in-law thinks it is wonderful

I agree with morecowbell re the curved edges and I also have a Karmin G3 but if you are in the market for a new one I'd seriously look at the Karmin Salon Series.

Thanks everyone, I'll check out all the recommendations given. I'd never heard of Karmin before but I see they're quite well thought of!

Check out Instyler.

Remingtons always get raves, not necessarily the cheaper basic models but the 30 quid + ones. Check out reviews on Amazon, and maybe Argos. Various models are always on sale somewhere.

I use Cloud Nine straighteners, they're the best I've used so far. Everyone is different though.

Make sure that you check that the plates are solid & not just a thin layer of tourmaline or ceramic glued on. Also a long warranty is good, my G3 has a 3 year manufacturers warranty, the cheaper ones tend to burn out faster hence their shorter warranties. I listened to my hairdresser and her mates who all use professional quality brands and Becky swears by Karmin. Have fun choosing.