This one doesn't look like it has 1900 MHz bandain:
Samsung I9000 Galaxy S Unlocked Quad Band GSM Cell Phone
And this is the Tmo version:
Samsung T959 Galaxy S T-Mobile Unlocked Quad Band GSM Smartphone
It's a bit pricey but they are legit, I bought my i8910 from these guys when no one else had stock of it. However, still call up in advance to make sure they have stock.
Having said that, again, it's a bit pricey.
Samsung I9000 Galaxy S Unlocked Quad Band GSM Cell Phone
And this is the Tmo version:
Samsung T959 Galaxy S T-Mobile Unlocked Quad Band GSM Smartphone
It's a bit pricey but they are legit, I bought my i8910 from these guys when no one else had stock of it. However, still call up in advance to make sure they have stock.
Having said that, again, it's a bit pricey.