I am a novice gardener, too. Last year I planted a vegetable garden for the first time in my life, and was SHOCKED at how much we got from it, and how relatively simple it was (once we got it going). We had great success with sugar snap peas, chard, lettuce, radishes, cabbage, strawberries, and carrots....and we had at least 40 pounds of tomatoes of assorted varieties.
I followed all of the advice I could find about getting a good soil, and I'm sure that helped. We used soaker hoses and tried to water 1-2 times per week (only slightly more often on the hottest weeks). We used coffee grounds to keep slugs at bay (apparently they don't like to climb over the grounds?), and planted some marigolds for the same reason.
We had no luck with spinach, and poor luck with beets. We planted leeks at the wrong time and got them at a different time - a year later! Same with garlic.
This year, we've got onions, potatoes, garlic, fava beans, sugar snap peas, carrots, spinach, strawberries, raspberries in the ground, with plans for much more. I had no idea that gardening was addictive!
I highly recommend the Maritime Gardening Guide recommended by someone else in an earlier post. I also learned a lot from Stuart Robertson's Tips on Organic Gardening (and we used his technique for turning sod into garden). The folks selling plants at the Farmer's Market are very helpful, too.