I'm going to be upgrading the video card on my Mac Pro 4,1 pretty soon and I was planning on just buying an XFX 6870 ($150 on newegg w/ rebate) and reflashing it. But I recently had the opportunity to grab a brand new Apple 5870 locally for $350 from an authorized Apple reseller who will honor any service or replacements if it's DOA. (used 5870's on Ebay are going for $330-$380) So, my question is do you think the performance/stability of the 5870 is worth the extra $200 over a flashed 6870? 90% of the use of my MP is heavy Photoshop and InDesign work, I don't game or edit videos very much at all so that's where all of the graphics power goes. I'm fairly certain I don't NEED the 5870, but if the reflashed 6870 is going to cause me headaches with reliability I might prefer it.