Upload & Sell: Off
For large quality prints I use West Coast Imaging/Aspen Creek (landscape), they're a little pricey on somethings but Aspen Creek runs specials all the time, customer service is second to none. The guys up there take care of their clients. I printed a 24x36(shot with a D800) Lifestyle portrait through WHCC and it was awesome, could stand nose to print and it was simply amazing. I've had metal prints up to 24x36 done through Bayphoto and have been happy with the quality and service.
I'll have to look into them, thanks