Hi CorCentral,
Yes I just got a Brother MFC-7840w last week which will take 8.5x14 in the tray and scan 8.5x14 through the ADF. I haven't personally used that size, though.
I got it for $278 at BestBuy (B&M), but it's on sale this week there for $250. Its the lowest I could find. Everywhere else is around $300 especially if you include shipping if ordered online.
If you don't need wi-fi connectivity, the MFC-7820n is similar and has ethernet connectivity (as well as parallel and USB). It costs around $200.
I'm sure there are others out there that fit the bill, but this is one I know of. One thing I noticed when I started printing is that it curled the paper somewhat. It may be the paper I'm using isn't good enough or a setting on the unit needs to be adjusted.
Its gotten very good reviews, though. A quick search should bring you some data.