*TS

here are my opinion about Strada & Navara

Strada
-pretty good ground clearance, no problem in dealing with knee high waters

Navara
-its biggest in its class
-the 4x2 model has a lower ground clearance, you need to spend a little more if you want to gain same stance as the Strada

other option:
Hilux
-just this 2009 a 4x2 G version was already released
-it already has the same height & looks of a 4x4, but cheaper current price is 1.062M

just my two cents