Don't forget to plant some french marigolds amongst the toms to ward off white fly and add a couple of sticky strips to make absolutely sure they don't get a hold, easier to prevent than cure.
Basil also works and smells divine when you touch it. But don't forget to cut it back as it starts to grow as it easily flowers, then goes all woody and horrible in the warmth.
As for flowers, I struck a cutting from a pretty red carnation from a supermarket bunch and have that planted in one corner, so I have some cut flowers right through the summer. When it gets old and woody, I just choose another bunch and strike a new cutting. Just select a strong side shoot from the bunch and root in a small pot or even a jar of water. They root really easily this time of year. Most of my flowers go outside during the summer, but the GH is invaluable to plant up tubs and baskets early then keep them warm until they go outdoors when it warms up.
PS I agree with somewhere to stand your mug of tea and space for a radio!