I recently purchased a refurbished Dual GHZ machine which is plagued by the dreaded flashing problem as well as a loud fan noise. I have 3 days left to return it to the reseller for store credit. After losses on shipping, I will only be able to afford whatever the midrange machine happens to be, come late july/early august. What would any of you do? Does anyone think the midrange machine will be better than the top of the line machine right now? I use Final Cut Pro 3 like a madman so dual processors are nice. Should I exhange it for a new midrange machine? Your input would be really helpful.