This seems like a cool deal. A quote:
IGN Entertainment and Top Cow have announced readers can now purchase download-to-own comic books via IGN’s Direct2Drive on-line service. The high resolution PDF file can be printed out, using your own paper and ink, or read on your computer. Top Cow plans to offer over 400 titles throughout the next year. Currently available are issues of Witchblade, The Darkness, Tomb Raider, and Rising Stars. Prices are not too bad, with most issues costing $1.99.