Just FYI, the Toto Entrada elongated can be found for about $20 more than the Luxford, if you shop around. I have long considered that toilet to be a Best Buy.
If you just want the least-expensive decent toilet, HD has a $99 elongated two-piece single-flush 1.28gpf toilet in white, if you can find it (I only see it in bone, black and some other color, all for $40 more locally right now), including the seat, the wax ring, etc. That's a pretty-good toilet that flushes well; installed one in a friend's bar two years ago and only replaced it (with the same model) a month or so ago because someone manged to jam a glass in there that we couldn't get out even after pulling the toilet. Flushes very well, decent bowl rinse, stood up to daily abuse in a rough environment, decent quality, nice-enough-looking.