Inducements and enticements for Guitar Hero's full kit and two band-specific versions headline this weekend's roundup. On with the deals!

• If the dancing A-list celebs in their underwear didn't get you, Walmart is hoping a bigtime rollback will. Guitar Hero: World Tour's full band kit bundle is $100 ($99.74, actually). That went into effect on Wednesday. You can also get a two-guitar set for $70. No word how long these lasts. [Cheap Ass Gamer]

• And if you want a bunch of extra songs to go with that, RedOctane is offering Guitar Hero: Metallica with GH:Aerosmith for $60 and free shipping. Enter code GHMETALAS at the order page. [Cheap College Gamers]

• Likewise, Best Buy is touting a free copy of Guitar Hero: Aerosmith with purchase of full price GH:Metallica.

• Steam's weekend sale is Worldwide Soccer (sigh, Football) Manager for just 15 bucks, which translates to "half-off."

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• Gamestop: If you want to upgrade from your DS and don't mind getting rid of it, Gamestop will give you $70 toward the purchase of a ($180) DSi, if you bring in a DS Lite. You'll get $50 for a used DS, $20 for a GameBoy Advance. They also offer that coupon at left, which is 20 percent off used PS2 games. PS: We've been getting tips that some Gamestops already have playable demos of Arkham Asylum, described as early builds or betas. I haven't broken it out into a post because I can't verify. But since Weekend Coupons is by nature a free ad for somebody, I figured I'd mention it here, because these tips also sound like a viral buzz campaign to get you down to the store. [Coupon via CCG]

• Finally, dunno about you all, but I'm really high strung about my audio and always game with headphones on. If you want a good pair, you can find Able Planet's NC200 Noise Canceling Headphones for $50 on buy.com, which is half off the usual $100. [CCG]

As always, smart gamers can find values any day of the week, so if you've run across a deal, share it with us in the comments.