Well if you don't have plants in a fishless cycle then you can literally set it going and forget about it (so to speak). You can even sticky tape some black bin bags around the outside to stop any light getting in. After a month or two you'll have a cycled tank in 100% pristine condition.
Also plantwise, check out the plant section of the forum. There is a good sticky on where to buy plants from in the UK.
I personally get all of mine online. Either from here, ebay or a couple of good online retailers (all listed in the stickied thread).