first tri in 2 weeks?

I wear my swimsuit for the whole thing (see side picture). Really, for a sprint, you won't experience blisters or chaffing. I never have.

Some place on this site is a list of things to bring. You may want to try a search.

I'm excited that you've decided to do it. For your first tri, you're goal should be just to finish and then if you want try to finish in the top half or 25% of your age group. You could also set other goals for your swim, bike and run times. For example, if you know you can run a 5k in 24:00 then set the goal to finish the run portion in that time or a bit slower b/c it's the last leg of the race. Do the same for your swim and bike.

Good luck!

As far as clothing, the expected water temp is supposed to be 69*. I'm thinking for 1/4 mile I can easily do without a wetsuit? That being said what do I wear instead? From what I've read tri-shorts sound like a good idea, but what about a shirt? Is a singlet used for swimming? Do I even need a top for the swim?
Also, do I need a bag or anything to store my stuff?

For a new guy, you sure ask a lot of questions. Let's see if I can hit most of 'em:

If the bike ride is less than 20 miles you can do the whole thing in a swimsuit (especially if you look as nice as Bethany ). You may be more comfortable in tri shorts, which have a minimalist pad. A singlet will be fine for the top, you may want something that is relatively tight and fast-drying if you're going to wear it in the swim. Many races will let you go shirtless, consider that if the weather allows.

Personal preference plays a big role, but many triathletes go without socks and underwear. You definitely want to have running shoes for the run, whether or not you wear cycling shoes depends on your level of experience with clipless pedals. Not needed, but more efficient. Would not go aout and buy them to use in two week, though.

Carry an extra tube, tire levers, and a means of inflation (CO2 or a pump) and know how to use them. Otherwise, a flat puts you out of the race. You also want to carry sufficient hydration on the ride, most sprints don't have water stations on the cycling portion.

Bolt-on (not "snap-on") aerobars work well, do take some getting used to for handling and access to brakes and shift levers. I wouldn't try them either if your tri is in two weeks.

Time goal? Estimate your individual event times, add 5 or so minutes for transitions and another 10%-20% for fatigue.

If you "already run and bike on a regular basis," and can swim the distance, I'd say go ahead and tri. It'll be good experience, will give you a lot to think about over the winter.

Jayhoe, you have plenty of time to prepare! If you can already do each leg separately, you just need to learn about transitions and OW swims. I think there are a few great articles on this site that will help you a lot.

Also, if you wanted to get tri shorts, now would be a good time since they are probably on sale. Good luck and have fun.