your jalapenos, tomatoes, and basil are going to want a lot of sun. i've tried to grow peppers for the last 2 years and haven't been able to get decent sized fruit because they can't get like 12 hours of sun per day.

depending on what type of tomato plant you have, you may consider pruning to get rid of any new suckers as they grow. I like to keep my plants to 3 vines. The reasoning is that if you prune the suckers, the plant will focus less energy on creating vines and more energy on putting out fruit. Here's an article: http://gardening.about.com/od/totallytomatoes/qt/Tomato_Suckers.htm

give the seattle tilth gardening hotline a call with any questions, they're very knowledgeable and provide a great service to the city: (206) 633-0224 or you can also submit questions online now: http://www.seattletilth.org/learn/hotline/question-for-the-garden-hotline-1

you can also go to your local p-patch on any given sunny day and talk to some of the gardeners there. Most will be happy to chat about their tips and tricks.

good luck!