I love my Minelab....
But for the $$$$$ range you are looking how about a Fisher ID Excel?
quote from a web site.
"The Fisher ID Excel metal detector uses the hottest new digital technology to give you a digital keypad to adjust discrimination, sensitivity or to activate the easy to use pre-programmed coins/relic mode, accurate Numeric ID so you know what you are digging, and performance that cuts through trash and goes deep! All this power in a lightweight small package with easy to use features - all backed by Fisher metal detectors Lifetime Warranty! Plus, the control box can be handle or hip mounted."
Or a Garrett GTAx 550 list at $499 but $399.95 at web store
Bounty Hunter Land Ranger list $550 but 450 at web store