what do u recommend for a lighting kit to start out with? I have a nikon D80, and something under like $1500 preferably.
I would check out
http://strobist.blogspot.com/ That's a website dedicated to doing off-camera flash lighting without paying $$$ for big strobe setups. Flashes are much much cheaper, less powerful (only draw back) but alot more manuverable, portable, and just easier to work with

I've used big studio setups, and they are nice when you are trying to light something big like a car with a huge light above it, but for just about everything else, cheap flashes and pocketwizards will work pretty much just as good, and a whole lot cheaper and easier to use!
Using just regular flash guns (the type of flashes that go on top of your camera) with wireless triggering systems is quite cheap compaired to studio strobes. I'd say two flashes (lets say $120 each) 3 pocketwizards (one for the camera, and one for each flash, $170 each) and two "shoot through" umbrellas ($25 each) with light stands and mounting heads (probably a total of $80 each stand/head setup), and then some rechargeable AA batteries and a charger (probably $40 total?) would be a perfect setup! That would probably be a total of about $1000 for a nice solid flash setup, and a very portable setup too!
The pocket wizards are "expensive" (they are the most expensive part of a usual flash setup) but they are absolutly bullet proof reliable! They have a very long operating range, and they will fire every time you pull the trigger, like 99.99% with out fail. They are the golden standard

You could try some cheaper methods (Cactus triggers, or what not) that are 1/5th the price, but they don't work very well, (they work like 70% of the time) and will just be frustrating. I got a set of the cactus triggers when I was starting out, just to see if I really wanted to get into flash lighting. After 2 days, I knew I loved flash lighting, and I knew I hated the Cactus triggers and wanted Pocket Wizards! haha! After I went to the pocket wizards, there's no looking back at all
And then after that, just add a flash, stand, and pocketwizard when ever you think you need an additional light (you don't need an umbrella for each light, but it's probably good to have at least one umbrella to use upclose for soft "portrait light"). Or, you could maybe even get away with using a light trigger (built in to some flashes) and cut the cost of the pocketwizard. But, they are so reliable, they are well worth the $170 when you need them.
MPEX sells "kits" that include a flash, light stand, bracket, and light gels:
1 set:
http://www.mpex.com/page.htm?PG=STROBIST1XKITS
2 set:
http://www.mpex.com/page.htm?PG=STROBIST2XKITS
Now, these stands and brackets will not be the most heavy duty stands in the world, but they are a great place to start (and VERY inexpensive!), and will more than likely last you a good long time!
And all you need after that is the pocketwizard:
Pocket Wizard transcever:
http://www.mpex.com/browse.cfm/4,124.html
And if you want additional flashes:
http://www.mpex.com/browse.cfm/4,12311.html or
http://www.mpex.com/browse.cfm/4,4616.html (or most any manual flash you can find on ebay)