I have an Early 2009 2.66 Nehalem Quad-Core Mac Pro (6GB). It recently stopped working. A authorized 3rd party repair shop ran some diagnostics and told me the processor is fried, and quoted me $500-$600 for parts & labor to replace it. Is it worth sinking that money into a machine that old? I was considering purchasing a new Mac Mini instead to pair with my 24" LED Cinema Display. Is that a better investment? Is a current Mac Mini a "better" machine than a 4 year old Mac Pro? I'm not doing too much heavy lifting. Some light Creative Suite and ProTools work, but nothing too intensive. Any advice?