where should i buy a new Duo from??

subject says it all. after my tax return comes in, i'm looking to buy a
spiffy new Duo (my first foray into PCE/TG CDROM gaming).  question is: from
whom should i buy it? TZD has never done me wrong in the past, but anyone
know a better place to order from? cheaper? comes with extras? thanks
all....

abe m.