I am not looking for ekg machines

More like stocking up on Tylenol / Motrin / Insect Replenant/ etc.

Band Aids, etc.

Anyone have any places that are good suppliers?

I think Reflare and EDC Depot are a great start.
Redflare

EDC Depot

I have been very happy with their services.

Pete

If you are looking for the individual packs of OTC pills, another site is minimus.biz. I have never used them personally.

I go to the travel sizes at walmart or Target.

I like minimus.biz for small, individual samples of items that can spoil quickly if opened and not completely consumed.

While this is off-topic for this query, I might mention if someone lives alone or as a couple, huge size cans work poorly if the contents aren't eaten in a single serving and can't be refrigerated after opening. Minimus.biz offers lots of single-serving sizes to prevent such spoilage.

Which brings me back to topic - tylenol, motrin, and the like have a shelf-life. Insect repellant, band-aids, and the like either don't or the shelf-life is so long it won't matter.

Costco sells a box of 280 assorted band-aids for $12; Tylenol is $15 for a bottle of 325 capsules. I'd expect my local drugstore to have big bottles of its private-label brand of OTC stuff on the shelves, although I haven't checked. Sometimes shipping eats any online savings, so I often compare online price, tax, and shipping to the local price and tax. Check your newspaper for circulars - our local drug store often has sales offering 2 for 1 pricing. (Example, the store brand acetaminophin is regularly $9 for a hundred tablets; on sale now for $4. So $12 gets you 300 instead of Costco's 325, but no shipping cost.)

I'd be interested in knowing the life of a bottle of NSAIDs before opening and after opening. There may be none, but the rotation schedule for the unopened bottle can be set. If the difference is significant, I may want to consider having several smaller bottles instead of one big one.

good points. Thanks for the advice.

Some in the boating and cruising community buy from here:
http://www.hopkinsmedicalproducts.com/

Prices and shipping costs seem reasonable and the selection is pretty good. I haven't bought anything from them, I generally buy locally from small businesses when I can, but with the big box stores and major corporations taking over I may shift to on-line purchases. The prices the major retailers charge for basic medical supplies is ridiculous. Often twice or three times what some on-line source charge. I guess they figure they have you wounded, bleeding and in pain so they can charge whatever the market will bear. Nice guys.

A handy way to find good deals if you know exactly what you want is to run a search through Froogle, now known as Google products search:
http://www.google.com/products

Type in what your looking for and you can sort by price, sellers rating, or other factors. Often if you find a retailer who sells one quality product cheap they sell other things at a discount also. You have to be careful to make sure the organization is reputable, I avoid E-Bay and other auction sites, but I have found a lot of very nice deals from retailers I wouldn't have known about otherwise.

Next time I make an order for some stuff I plan on ordering from http://www.quickmedical.com/. They have a huge selection and most of what they have you can order in single "unitized-size" quantities.