"BTW Ellis- what system do you use to shoot architecture currently?"
thank you for asking Harshan,
For medium format work I rent Phase One back based systems from Capture Integration (
http://www.captureintegration.com. For 24x36mm format based work I mostly use a Canon EOS-1Ds MArk III with various lenses. For camera support with either medium format or 35mm ased DSLR's I use a Gitzo 410C tripod 320 with a Foba ASMIA head and, as needed , the Really Right Stuff PG-02 Omni-Pivot Package -either the full package (PCL-1, CB-10, PG-02 VA + clamp, and MPR-II "nodal slide") or just the necessary components of that kit as required by a specific photo. I also have a CB-18 camera bar, a second PCL-1, and a CRD-Rail to add to that kit as needed. If I am strictly going to be making a panoramas I'll use the larger Manfrotto leveling base.
After extensive testing i went with the RRS panoramic gear (I started with the original Ultimate-Omni-Pivot-Pro) over a dedicated panoramic support solution because of RRS's mechanical qualities and modular design. The weak point in the Ultimate-Omni-Pivot-Pro is the use of the second PCL-1 to set vertical angle; even RRS acknowledges this. The rotating joint in the head of the PG-02 VA is much stronger.
I use the Gitzo's because I've owned them forever and the 410 C is very stable even when at full extended height. it is heavy as all get out (And the ASMIA isn't exactly light either but it's movements are extremely smooth, precise and lock down tightly with very little pressure.)
I have also used the Nikon D3x and it is a great camera, but I own the Canons so those are the cameras I use the most.
Raw processing is done with either Capture One for the Phase One files or Lightroom 3.5. Post processing is mostly done in Photoshop CS 5 Extended with the PhotoKit Sharpener II plug-in and Mac Holbert's formula for a Mid Tone Contrast Enhancement action (I prefer this over Clarity in ACR /Lightroom). If a photo requires it, I'll focus stack using Helicon Focus.