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Newegg has the Mushkin ECO2 480GB SSD (MKNSSDEC480GB) on sale for $159.99. Shipping is free.

Mushkin Enhanced ECO2 MKNSSDEC480GB 2.5" 480GB SATA III MLC Internal Solid State Drive (SSD)

I haven't seen any reviews of the ECO2 nor do I know what controller or NAND they use but at $85 for 240GB, they're gonna be hard to pass up.

Mushkin Enhanced ECO2 MKNSSDEC240GB 2.5" 240GB SATA III MLC

Edit: I should have read closer. They use a SandForce SF-2200 controller.