I would look at Marvin Integrity in either the All Ultrex or the Wood/Ultrex Series. I would NOT use anything from PlyGems but that is just my opinion. 36" x 72" is a pretty good size window and in a lower grade window of that size I cannot imagine it being a very tight seal or efficient window.

+1

Take a look at the Integrity hybrid.

flgargoyle- Definitely Marvin Integrity. Are you GCing yourself or do you have a builder? Marvin offers a 10% rebate if this is the first time your builder uses a Marvin product--but you have to ask for it.

We found the Marvin Integrity pricing to be significantly lower than PlyGem Mira, Jeld-Wen Siteline EX & Pella Architect (about $7-10K less expensive--we're in NC). I would definitely ask if you were quoted the contractor's price at the supplier you got the original Integrity pricing from. If so, I would seek out 1 or 2 more quotes from other suppliers--we had 2 in our area and their pricing differed by a couple grand.

Hope this helps!

Are you against vinyl because you'd prefer to purchase a window that will be moldy and rotted within 10 years?--- because that is when we are replacing many new construction wood windows. Fiberglass is definitely a better option, but you could find a premium vinyl choice that will have all of the advantages and more at a lower price... Just sayin... and I sell all three ;)

PLYGEM makes a nice aluminum clad window product. I have used them quite a bit and have had success.