Which portable generator should I buy?

I am looking to buy a portable generator to have on my property. It will need to be able to run two submersible pumps (120 litres a minute each) or emergency lighting in case of a power cut. I may also use it occasionally for various handy man chores. I really don't want to spend more than £250 - £300. Any... show more I am looking to buy a portable generator to have on my property. It will need to be able to run two submersible pumps (120 litres a minute each) or emergency lighting in case of a power cut. I may also use it occasionally for various handy man chores. I really don't want to spend more than £250 - £300. Any ideas? Thanks
Update: Can I plug regular British three pin plugs into them? In the pictures they show what looks like a different three pin plug hole?
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