I'm not so sure that the Deals forum needs splitting per se, but prefix tags to further categorize what's being posted would be helpful. Something like Readers, Accessories, Free Book/Game, Bargain Book/Game, Coupon/Discount, Resource would be useful, so that people could quickly skim over the colour-coded post titles that don't interest them.
There was some
earlier discussion of using prefixes to categorize the various ebook deals as well, but given the shifting availability of certain offers, it doesn't seem practical unless one can stack prefixes.
If it does come to a split, then Hardware (readers & accessories) and Software (ebooks, reader-based games, the occasional e-book creation software freebie like those PDF converters that have free license giveaways, and of course, online resources) seem to be the logical divisions.
Or maybe Resources as the third category, since stuff like the Philadelphia Free Library and Creative Commons e-book sites don't exactly expire (one hopes).