Does anyone think the mac pro will get any changes at WWDC? I am in the market for a new Mac Pro. I have settled that I do not need 8-core power. I found a good deal on eBay and not sure if its a good idea to buy one off of eBay when WWDC is less than 2 weeks away. Anyone feel there will be a speed bump, case redesign, snow leopard? If snow leopard came out, does anyone know if Apple includes free upgrade for new systems from a certain date? Any advice on whether buying a Mac Pro on ebay is a bad idea? Does Apple take PayPal receipt for eBay purchase as a valid proof of purchase? I've never had to provide a receipt for my Macbook Pro even though I did buy it at a true reseller.