I buy whatever hedgehog food I can get, Spikes is good, so is Chapelwood. I find Garden Centres are the best places to get them from. From time to time, especially as hibernation time draws near, I also put out sunflower hearts, chopped unsalted peanuts and mealworms (dried are fine), oh and banana chips are favourites. I use small terracotta saucers from the garden centre as dishes. I had a large terracotta pot that had cracked from top to bottom so I broke it in half and put each half on it's side and place it over the dish of food to keep the rain off and the cats out. A shallow bowl of clean fresh water (rainwater if possible) is important.
We bought a Chapelwood hedgehog house, which is being used. I also made one from a large fruit crate from the farm shop - I took part of the end out, stapled a plastic sheet over the outside and made some air holes in the end, then put some dry hay in it and placed it in a quiet corner, with the entrance towards a fence about 6" away from it, making a little tunnel, then piled the stalks of sweetcorn plants, some runner bean haulms and leaves etc over the top. We also left some pet hay in a dry corner nearby. The hedgehogs have taken leaves and hay into both the houses, and have been out during the day on dry days collecting fallen leaves. We put the food out each evening before dark and they are still eating it, but not as much as they were, which makes me think that possibly there are only our two residents feeding here now, and not other visiting hoggies.
Good luck 
