Monolithic retailer Wal-Mart is offering a $100 gift card with the purchase of any Blu-ray player, which includes all PlayStation 3 systems, even the $499 80GB PS3 and Metal Gear Solid 4 bundle that arrives tomorrow.

"Any Blu-ray player. Blu-ray. All of them," Wal-Mart spokeswoman Melissa O'Brien told Joystiq. The promotion appeared in the retailer's weekly flyer, but it is not clear when the deal is set to end.

The deal applies to both in-store and online purchases, and is likely to prove quite a draw for those gamers who have held out on purchasing a PlayStation 3 until tomorrow's release of Kojima Productions' Metal Gear Solid 4 (PS3).

Other currently available varieties include the $399 40GB version, and the $499 80GB version which has been largely phased out to make way for the new MGS4 bundle. For a comprehensive rundown on Sony's complicated family of PlayStation 3 models, check out our buyer's guide.