HTC Touch : No 3G i believe. no keypad. uses HTC Touchflo technology. be prepared to get lotsa thumbprints on your screen.
D810 : Currently using it. Great phone IMO. has everything you need. Wifi, 3g, HSDPA, I've loaded mine with "cooked" WM6 rom with a 12mb paging size. super fast!! in SG its selling for about 1.2k without contract. i got mine in taiwan for roughly 900 SGD! Highly recommended!!
Alternatively, you could wait for the HTC Kaiser which comes with a 64mb graphics accelerator and keyboard ^^