Joseph,
Personally, I would say either the Explorer or the T2. As you know I have not touched a T2 YET. But, here's my take on the two. I have 5 years of experience on the Explorer. I hunt every weekend when the weather permits. Alot of what suits you is dependant on user preference and the type of sites you hunt.
A couple of thoughts on the Explorer. It's probably one of the best all around detectors out now. It has a nice selection of coils available. 5, 7.5, 8, 10.5, 12, 14, 15, and 18 inch coils plus a few non-traditional sizes like the Coiltek Joey, Platypus, etc. It's just as home detecting in a park as it is in an old iron ridden homesite. As I said in a previous post the Explorer is NOT always my deepest machine. If my 3D GBs above 5 or so my 3D with the 8 inch coil can beat my Explorer with the 10.5 coil in depth. But, if I GBs my 3D below 5 my Explorer is deeper. But, the thing is the Explorer is 'better' in iron so depth is not always the most desireable trait. Naturally, each machine has detected the same area and has found coins the other missed. Another thing I should mention that you've surely heard is that the Explorer has a learning curve. IMHO, there are three different kinds of Explorer users. They are... the user picks up and understands the Explorer on their own with some hours under their belt. The second is the user that need some help and once they're shown what a deep coin sounds like a light clicks on. The last is the user who never seems to grasp the Explorer even when their shown the deepies, etc. I picked up the Explorer after about 2 months on my own. My detecting partner is the last type of user. I have shown him more times than I care to remember what a deep coin or a coin near iron sounds like. We hunted a park in 2004 that had a ton of coins but they were all deep. I dug over 400 wheaties and over 50 silver. I was tripling his finds almost every outing. I am definitely not bragging only making the point that the Explorer can take some hours to learn it and get the maximum potenial out of it.
As far as the T2, I am definitely liking what I am hearing. Respectable depth WITH a quick reset which can help you get those coins close to iron and other trash. DD type coil for more mineralized areas that my 3D with the concentric coil doesn't do well at. Alot of user adjustablility with tones, etc. The downside right *now* is the lack of other coils and unproven reliability but with a 5 year warranty that hopefully is a non-issue.
To be honest, the T2 is going to have it's work cut out for it. Most of the places I hunt I have absolutely pounded. My reason for my interest in it is the respectable depth and quick reset. There are a couple of places that the T2 will be tested that are very difficult places to hunt due to iron or other trash. Depth isn't always an issue for me as much as quick reset. If I find much in any of the areas I hunt I will be like Scott and throughly impressed. BUT, 2 years ago the CZ-3D pulled out some coins in the tamer ground I hunt and I was impressed. That detector is still in my arsenal...
-Bill