Good luck, Egglett.
I gave up a few years back for an 8 month period, when I was first diagnosed with clinical depression. ALthough it is initially a stimulant, and what made me such a bright sociable person in college, alcohol is ultimately a depressant, and the tablets I was put on were not advisable to be combined with drink. So I took my docor's advice and gave up both alcohol and caffeine. It was difficult to begin with, as I was at university at the time, but it got easier as I got into it more, and I started to enjoy having more of my student budget available for little extras (when you're as low as I was at the time, even a new pen for note-taking in uni feels like a real special treat!!)
Even though I still suffer the depression (clinical is an illness, not a result of events, so I'm a sufferer for life - the trick is not to let it control you - and the running helps), I will admit that I wouldn't like to try quitting alcohol again!!!