The short answer:
Yes, you need active ventilation in the form of a fan that will remove hot air to limit the potential for plant health issues. Don't get me wrong, people DO just toss a plant under a light and jam it into a stuffy, stale closet... but results are not very impressive.

Obviously when it comes to lighting, more light = more buds... but it has to be the RIGHT light. Intense light with poor ventilation is going to cause heat problems. There is a simple way to determine if you have adequate light.

- Figure out the square footage of your grow space (length x width)
- Calculate the TOTAL usable lumens that your lights will provide
- Divide the TOTAL lumens by your square footage
This = Lumens per square foot
Roughly 2,000 lumens/sq.ft. is really the MINIMUM you can offer the plant for growth. Anything 4,000+ lumens/sq.ft. is going to give you relatively vigorous growth. So, regardless of what type of light you use... ALL lights give off lumens, thus this formula will give you an idea as to your light situation.

Compact Flourescent Lightbulbs will probably be your weapon of choice. They are relatively cheap and make it much easier to maintain temperatures (also available in many stores and don't require additional supplies). If you have a light socket... you can use a CFL. In terms of efficiency... they are not the best (High Intensity Discharge lights will give much more lumens per watt... but are much more difficult to keep cool) but for your situation, they seem to be your only option.

LED's are cool shit... but very expensive. At this point, many people use them as supplemental lighting in combination with CFL's or HID's. Some DO go 100% LED's... but I certainly can't afford that. They are true pioneers :jointsmile:

Check these out for now... and don't buy anything or germinate a single seed until you have worked your grow out from start to finish. It will save you time and money... something I think we ALL could use a little more of :hippy:
http://boards.cannabis.com/basic-gro...-dankness.html
http://boards.cannabis.com/indoor-li...-lighting.html
http://boards.cannabis.com/indoor-li...uch-light.html

And about saying "Indoor Grow Tent." I just read a story about a guy getting it delivered to his house... and on the box it said "Homebox: The Original Indoor Grow Tent." Just wanted to find a company that had a bit more discretion when labeling their packages. I did find a distributor that assured no identifiable markings on the box... but I'd like to buy straight from the manufacturer (especially with reports of imitations that don't have very "white" siding... making it less reflective)