i've read the tomato nutes that come with it will work, as least during the veg stage.
bottom line is the aerogarden will work, but for the $ you could put together something that will be FAR more effective at growing weed.
the lights are probably ok for veg, but you'd definitely want to add some 2700k CFLs when you flower.
i'd look at putting together a Rubbermaid grow over the Aerogarden any day.
the Aerogarden is what sparked my interest in growing but the more I read the more I realized I could build better for less.
my advice - the only herb you should grow with the Aerogarden is basil.
build one of these and you'll yield 2-3 times what you will in the Aerogarden..
here's a step by step guide!
http://www.shroomery.org/attachments/6601079-RUBBERMAIDGROWCHAMBER.pdf
