All serious gardeners need and want are a decent hand fork, hand trowel, border fork, fork, border spade, spade, good loppers and last but the most important secateurs. Forget all that nonsense that the magazines are trying to say is the next best thing, I can't even remember the name of that hand gadget that proposed to revolutionise gardening, the hand spork or something, the thing with the spokes poking out of it, all you had to do was turn it and it pulled out weeds and everything. If something like that was available and worked don't you think all us gardeners would of invented it a long time ago, believe me, we get alot of time to think of tools that might make our life easier.
If you want to buy a present for a gardener and it's in the budget then i suggest Felco secateurs, they are about £35 and are the professionals choice, I've had mine for about 5 years now, not like that cheap rubbish from DIY stores and every good garden center carries spares for them, new blades, new springs etc. They come in about 7 models I think, large handed, small handed, left handed and there is also a model that's particularly good for arthritis sufferers. I will not post a link to anyone specific for these just google Felco secateurs and find the supplier that suits you but I promise give these to a gardener and they will be ecstatic.