Ive just looked on the tesco website and its not on there now but argos have one the same its called Electronic Smart Kitchen or if your dd is really girly Toys r us have the disney princess talking kichen half price at £29.99. My dd has got this now as her brother plays with the other one,it is really lovely.
We have a Little Tikes one and it's still going strong 10 years later (although it is foul plastic)... Definitely check them in person and go for the strongest rather than the one with most gizmos.. you'll get a lot of use out of it. I think IKEA do nice wooden cookers which with a set of pots would be fab. Your Dcs will imitate whatever they see you doing so if you cook a lot, all they will need is a cooker
We have the elc one which we have had for 3yrs. All three dc love it and it has lasted really well. Especially as during the summer etc it lives in the garden and then only comes in for the winter. Might be worth seeing if you can pick one up second hand or getting a 20% off voucher to use at elc.
Thanks for all the suggestions. I thought about the elc one and using the 20% off voucher but they said that would not be possible because its a promotion (you get some free bits and pieces with it at the moment).
Thanks Sammybeth - just found the electric smart kitchen on the Argos website and it looks great. It has got loads of reviews mostly positive too.