It's easy to get carried away when looking through seed and plant catalogues, so make sure you grow only what you really like, keeping experiments to a minimum. Think about how much space you have, that will be the greatest limitation on what you can grow. Also think about how long things take to grow - cabbages, for instance are slow to mature and take up precious space all season.
If space is at a premium, consider dwarf varieties and bush forms. Many seed companies now sell 'patio' vegetables, which are suitable for even the smallest garden.
Our RHS experts have put together a number of advice profiles to help you get started in the veg garden.