http://accessories.us.dell.com/sna/products/XBOX_360/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A3562850
Dell is discounting the 360 Elite Spring bundle (with Forza 3 and Halo: ODST) by $31. I can't speak for tax, since it doesn't apply in my state. Free Ground shipping.
I've been looking...