I have recently begun brewing 1 gallon batches myself. I use BeerSmith to scale down my recipes. You will use much less hops with these batches. The thing to get is a gram/ounce scale. Some recipes call for ex. 0.46 ounces of bittering hops and even less for flavoring and aroma additions. I rarely use more than 1 ounce of hops in a 1 gallon batch.
Kegged: Magnum P.A., Black Currant Blue Agave Black Peppercorn Saison, Keller Bier, Hefeweizen, Chocolate Saison
On Deck: Chuck Norris IIPA, Apricot Blonde, Raspberry Wheat
In the hole: