electric cooker

i'm in a house that has an integrated electric cooker and hob in the kitchen, it needs to be replaced. anyone know if its a pain in the ass to replace them. it looks like its going to be a job to get the old one out!!

No, these are very easy to remove and install. Should be about 4 screws holding the oven into the cabinet. Thob can be removed when the oven is out, these just use a few clips along the edge of the worktop. Make sure whoever is doing it knows what they're at with the electrical connections, these are heavy users of electricity, so the connections need to be well made.
Leo

in terms of buying a new oven, are they mostly of standard size

The ovens are a standard size to fit into a 600mm wide unit. The hobs are a different matter. The cut outs vary and if the hole is too big you will need to replace the worktop.