Toilets?

Awesome. Thanks guys! We (in US) currently have two elongated, one-piece, 1.6 gal, low toilets, they are both American Standard but slightly different models. I am 5'7", and having spent a significant time sitting recently :( I think that the two we have are too low.
I'll measure the rough-in but expect that it is a standard distance.

I have just found the Terry Love plumbing forum, they seem to talk up the Toto Drakes quite a bit.

So we should expect to spend around $400 each then (not including seat)?

You should be able to get a good one for under $300, i.e. these:

http://www.homedepot.com/p/Gerber-Viper-2-Piece-High-Efficiency-Compact-Elongated-Toilet-in-White-GHE21519/204413109#specifications
http://www.amazon.com/CST744SG-01-2-Piece-Toilet-Elongated-Sanagloss/dp/B0012HBQK8/ref=sr_1_1
http://www.amazon.com/CST454CEFG-01-2-Piece-Toilet-Elongated-Sanagloss/dp/B002CQ4NVM/ref=sr_1_4

let's try that first link again:

http://www.homedepot.com/p/Gerber-Viper-2-Piece-High-Efficiency-Compact-Elongated-Toilet-in-White-GHE21519/204413109

I could read this kind of real toilet talk all day

one suggestion i have is start every conversation about toilets if you are in a store (or any plumbing really) with "i am not flipping a house", generally this will cut out 50% of their recommendations.

Dang. Noted!