decent yet cheap bathroom scales?

Hey all,

Does anybody know where (in the UK) I can get some reliable, good scales? Or what is the best make and where should I get them. I'm looking to spend no more than £12-15 on them; they don't need to be fancy, just some simple ones will do, as long as they are accurate!! Argos is showing me lots by Salter; are they a good make?

Thanks!