Thanks for the welcome, Taeric. I'll get around to updating the system specs (for shorts, I have a Dell Dimension 8400, 3.2Ghz (w/ HT), 1GB PC2-4200 DDR2, and an ATI Radeon X700 PRO w/ 256MB GDDR3 RAM).
Here are the system specs from a Beyond3d.com review of the RV410 core for the X700 Pro and the X700 XT:
Board Configuration Radeon X700 XT
Core Clock Rate 475MHz
Pixel Fill-rate 3.8G Pixels/sec
Texture Fill-rate 3.8G Textures/sec
Memory Speed 525MHz GDDR-3 (1.05GHz Effective)
Memory Bandwidth 16.8GB/sec
Frame Buffer Size 128MB
Board Configuration Radeon X700 PRO
Core Clock Rate 425MHz
Pixel Fill-rate 3400G Pixels/sec
Texture Fill-rate 3400G Textures/sec
Memory Speed 432MHz GDDR-3 (864MHz Effective)
Memory Bandwidth 13.8GB/sec
Frame Buffer Size 256MB
Right now, I'm running at about 450 MHz on the core and about 460 MHz on the memory, stable, using ATI Tool. I might can go higher, but I'm happy for the short term. With the Zalman VF700-Cu cooler (applied with a little Arctic Silver 5) installed, I have little doubt that I can get my X700 Pro up to and quite possibly beyond the X700 XT core and memory clocks, but I'm wondering if there are really any tangible benefits to flash the bios of the X700 Pro to an X700 XT aside from just using ATI Tool to overclock them. I know that flashing will not give me access to any "hidden pipes", since I'm already using all 8 that the X700 Pro can give me. After all the searching I've done, I can't find any reason to attempt a flash, since I should be able to reap all the benefits just by using ATI Tool to overclock my card.
Anyone have any different thoughts?