I recently used some of Kodak's Ultramax 800 on a trip, sometimes rating it at 1600 other times shooting it at 800 all developed normally. I thought it did pretty well. The PGI is the same as Portra 800, but the cost much lower (~$3.50/roll in 4 packs 24 exp).
I also shot Kodak's HD400 rated at 800 a bit. Actually if I only needed ISO800, I shot the HD400 instead since the grain is much finer and the film has plenty of latitude for this. The grain on this consumer film is a smidge finer than the new Portra 400NC and likewise, its much cheaper (~3.50/roll in 3 packs 24exp). I shoot the new Portra 400NC in sheet film and have some in 120. Its nice stuff too.
E200 pushed to 800 is phenomenal, and devlivers excellent saturation and contrast. My lab here in Brussels offers to do any specialist items like pushing for an additional Euro1 on the development price. For negative film, I usually use Portra 800. K