Newegg is offering the XFX Double Dissipation R9-290X-EDFD Radeon R9 290X 4GB 512-Bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card for $299.99 after rebate.
Link to product
Link to rebate form
Rebate is valid through 11/15
Link to product
Link to rebate form
Rebate is valid through 11/15