If you want 120Hz refresh rate, look at Samsung LN-T4671 (or 4669 for matte) or Sony 46XBR4. If you want 60Hz (cheaper), then look at Samsung LN-T4665 (or 4661 for matte) or Sony 46W3000. I would consider Sharp 46D64U a knot below those two models.
Go to a store and have a look at those models and see what you think.
Go to a store and have a look at those models and see what you think.