R.J.
Footrubs and martinis.
Okay...maybe not so practical. Picking up a bunch of Victoria's Secret giftcards at Costco would probably be the best middle-ground. You save money, and if you have any left over you can always toss them in presents for neices/sisters/girlfriends etc. later...or save them as a special "it's tuesday and I feel rotten" pickmeup for yourself. They work fine for male nurses, too, because guaranteed, they've got girlfriends/wives/sisters.
(note) Some hospitals (not all) have a strict "no gift" policy. Most nurses are either cashpoor or human enough to ignore the policy as long as it's obvious that the "gift" isn't a bribe, or otherwise -ahem- trying to get one over...merely an expression of gratitude. So save them until the end, don't pass them out as they're doing room assignments, or while you're waiting on the anesthesiologist to hurry his'darn'self up ;)
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Ditto Maryam. Bigtime.