I have the Dunlop 491 Elite II's, RWL (Raised White Letter), front & rear.
I haven't really paid attention to how many miles I've put on them, but they've lasted quite well as compared to, I think it was new Bridgestones, that were on when I got it.
I'm happy with them, and will probably get the same tire for this year.
Although Metzlers are available with the RWL's, I personally like the tread pattern on the Dunlops better.
As far as where to get them online, best bet would be to look around. Seems like better tire prices keep bouncing from one place to the next. Just gotta see what's out there.
AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC
"When life throws you curves,
Aim for the apex."