I was just about to recommend Von Schweikert and noticed DRIVER's post. I have the VR4 gen III's (bought DRIVER's) so here's an endorsement of his comments. They're a great rock speaker. There may still be new SE's available for your budget, but you can move up the line if you're looking for used.
You may also consider Totem Mani-2 sig's - also well under your budget. They play loud, and have extremely tight bass and incredible detail that conveys the real power of Rock music.
You may also consider Totem Mani-2 sig's - also well under your budget. They play loud, and have extremely tight bass and incredible detail that conveys the real power of Rock music.