If I was in your position and wanted way better than soil results for a first time hydro grow I'd go with something like this.
Hydropak Kit | Products | Autopot
I recommend straight perlite as the medium as it's dirt cheap, disposable and has great wicking properties. Apparently hydroton will work in this type of system but not as well.

I'd also use the following 1 part nutrients for simplicity and pH stability.
GreenDream | Hydroponic Nutrients | Liquid Plant Fertilizer
Although any decent nutrients would work ok I can vouch for what I suggested from personal experience.

Pretty sure a good 400W light would suffice. The idea is to keep the overall cost and effort to a bare minimum without sacrificing on results.

Keep the plants small and flower early for the first round until you understand how your particular strain will perform within the given environment.
Flush very well regularly and only use greater than 3/4 strength nutrients with extreme caution.
A small bottle of pH down and pythoff might also be a good investment to ensure things run smoothly.
Although I think DWC can be great it is subject to more maintenance, fluctuations and monitoring than a home growing stoner can really be bothered with. They also require some 'dialling in' before you become proficient using them with your nutrients and environment. If you spend a few bucks at first it will reward you with piece of mind and ease for many harvests.

Here is a thread using the suggested system.
skunk in Autopots:my 3rd indoor grow - Page 9 - Marijuana Growing

Hope this helps with your decision. Good luck and have fun.