I'm going to buy a new keyboard for my x51v but Im not sure which one I should get. Im leaning toward the think outside bt keyboard and mouse but my concern is battery life. Does bt drain your battery quickly? Im coming from a x5 and never used bt before. I plan to use bt headphones too. So if I were at school listening to music (via bt headphones) checking/writing email (via bt keyboard and mouse) would my battery die in 30 minutes?
Would it be better to go IR stowaway and bt mouse? What's your guy's (or ladies') solutions?
My Targus keyboard is obsolete to me now

or I would just use that since I bought it so that when I got a new device I wouldnt have to come to a forum and ask advice about a new keyboard!!!!!! ANYONE FROM TARGUS LISTENING????? (OK, ranting over)
Any advice would be appreciated. Everyone here be so much smarter than me.
Thanks in advance.