Be sure to think everything out before you decide on wheels. Things like how you'll use them, what racing you'll be doing, what size/offset/tires you'll want. A lot of people get rims for looks only to later realize they are not really useful for anything but...looks. If you do some homework, you can get some that look awesome but are also extremely useful for other reasons, too.
I don't know of a resource with all wheel weights, so I can't give you specifics, but when I say the TE-37s are lighter, that doesn't mean the Work Emotions aren't light, too. We're talking about two high-end sets of rims here that are very expensive, very high quality, and very light. The TE-37 is just lighter.
I'm not a vendor, so I don't have prices for you, but you can check around on Google. You need to pick a size first.
Just to add on to what Clayton said - make sure you really put some thought into how you're going to be driving your car with the new wheels. I had bought some Racing Hart C4 mesh wheels a few years back for my DSM, first set of aftermarket wheels I had ever bought. Those were the wheels I had always wanted because of their looks. After a couple years I realized they weren't wide enough for any type of racing that involved steering and they were too big in diameter for drag racing (18"). They were just pretty wheels, which as time went on, I found I had little use for.
I ended up selling them a few months ago to get some wheels that served a purpose (more than just looking good). Don't go spend your hard earned money on wheels that only look good. Make sure they'll work for the types of driving you do (or might do). Get the maximum width and correct offset you'll need for performance driving if you think there's any chance you might do any autox or track events.