Josh,
I've seen and worked with and profiled just about everything out there, and here's my opinion:
If I had an unlimited budget, I'd probably buy a Seiko M64S. It's a seriously fast, seriously beefy, seriously well-built machine, that prints very well. And priced accordingly. I think you could probably get two HP 360's for the price of one M64. But then again, the M64 will probably out-produce 3 360's.
If I was on more of a budget, I'd probably go with an 8 color Epson Sure Color. I like the Sure Color because it has orange in its inkset -- a distinct advantage if you need to hit Home Depot Orange, or AT&T Orange, and Pantones such as 165 or 021. And it's worth noting that the Seiko does not.
Both the Seiko and the Epson do come with light black, which I consider to be of critical importance on Eco-solvent machines -- which of course, both of these are.
For my money, I'd steer clear of white or metallic, unless you've already got a market for them that will pay for the cost.
Right now, I'd also steer clear of the HP 360. The way its contone generation and onboard calibration and media-making are set up, it's got graininess deficiencies and color inconsistency built right in. Maybe they'll fix it in time... but they haven't done it yet.
Also note that there's a Roland out there with light black -- the XR 640 -- but it's not configured in Versaworks to take much advantage of it, so it takes another RIP to really even make it worth having.
Also as far as Rolands go, it seems one of their main advantages is "print and cut" but if you want to go that route, I'd ask myself two questions: First is how much you cut that doesn't get laminated first, and second is if you really want to tie your printer up as a cutter.
Good luck.
Mike Adams
Correct Color