I'm debating over an X800XL at $329 (CDN) vs the X850XT at $469 (CDN), both are awesome prices in Canada, but we're also on the brink of a PCI-E only future....so I have to decide on how long to keep the AGP system (A64 3200+, 1gb RAM, etc). Anyway, the X800XL doesn't seem to be as overclockable (from what I've rear) as the X850s... But I could be wrong. So, I'm curious to know what gains I can expect by simply doing an X850XTPE bios flash to an x850XT. No voltmods, or anything else besides air cooling upgrade (too chicken to try that at the moment ) Your expertise is greatly welcomed!