Tim from Australia sent in a question via our super-sophisticated submission method (that'd be e-mailing one in to ask at engadget dawt com) regarding e-readers, and given that Sony just pushed out a new one of its own, we found this one particularly timely:

"I'm starting a PhD next year and I'm looking to get an e-book reader so I can read PDFs of journal articles on the bus. It would have to be readable in direct sunlight and have a display large enough to read pages of about 400 to 500 words. Stylishness would also be nice. I don't know the going rate for decent e-readers but I'd be prepared to spend up to $500."

So, intellects -- what's the best piece of kit to snag for visually inhaling those scholarly articles in PDF form? Will it handle the occasional FCC user manual, too? Because that's really important, you know.

It's true -- hunting down a waterproof MP3 player is a cinch, but finding a decent pair of waterproof headphones to accompany said player can prove challenging. Have a look at Melinda's question, and after you're done providing your best advice, send over an inquiry of your own to ask at engadget dawt com.

"I am an almost-daily lap swimmer, but lately I have been suffering from "lap boredom." I've been looking into the latest ways to take my MP3 player into the pool with me, and I need a set of waterproof headphones in order to do so. I've found waterproof earphones like H2O Audio and Aquatunes priced between $30 and $100, but I've also read many negative reviews. Before I spend this much money on waterproof 'phones, I want to know what I am getting. What brand / model do you recommend?"

Climb on out of the kiddie pool and toss in your advice, swimmers. What 'buds do you use to listen to music while submerged?

We'll be honest -- Dave has run into a magnificent problem to have, but it's still an issue in need of an answer. And before you get too engrossed, may we remind you that you can send in questions of your own to ask at engadget dawt com.

"I live in Canada and have relatives visiting Taiwan in the near future. What hawt Asia-only, non-igloo-related gadget should I ask them to grip for me? Thanks!"

We're going to take the liberty of expanding this question to involve all of Asia, given that quite a few others are probably headed to Akihabara in the foreseeable future. So, what's the best gizmos(s) to pick up if heading over to the other side for what may be the first and last time ever?

So you've got an awesome set of earbuds, but you're looking for a pair just as astounding with an in-line microphone for chatting it up. Thanks to the growing popularity of such a request, there are a few options on the market. Question is, which is supreme?

"I have this new music phone (it's a flush-jacked iPhone 3G) and I'm thinking about getting a new set of phones. I've used some high quality headphones before, but I'm currently using Apple's included headset because of the mic / remote. I've been looking at the Shure MPA kits, but what do you readers recommended?"

Thanks for the inquiry, dandaman. Let's hear what you've got, readers! Afterwards, feel free to send in a puzzler of your own to ask at engadget dawt com.

We know, we know -- a camera is only as good as the images it produces, but this week's Ask Engadget question revolves around an oft overlooked video function. (Psst... feel free to shoot over your own inquiry to ask at engadget dawt com, but only after you check out Jonathan's question below.)

"What's a good camera that takes great quality video for at least 30 minutes (yes, I know I'd have to buy an extra memory card)? So many of the cameras I've messed with have a limit on how much you can record in one session, even if you have enough storage space. Thanks!"

Here recently, a few cameras have surfaced with 720p video capabilities, and there's a plethora of options if VGA is good enough. What camera is best for snagging those candid videos that inevitably end up on YouTube / Facebook / etc.? Don't lead the man astray, now.