Honestly, I think offer an iPad/Mac bundle would be better for everyone.
Even if it was the iPad 2 (assuming it does in fact stick around come iPad3). It totally pulls a new customer in Apple's echo systems, and would offer a value to a customer.
As for the printers, everyone has pretty much said it already. People don't really print much anymore, printers are cheap (it's the ink that gets your wallet upset), but I do disagree with people about the rebates not being worth their value.
Apple always had several printers for $99 or less... and sure, they might be $30 cheaper at Target, but it always came out to be free. Apple was also the best I've seen with rebates. You only had to log into the a website, all your info was there, and press submit. I've never waited more than 7 days to get the rebate back from Apple... most companies take 7 weeks from start to finish.