I'm heading back to school and I'd really like to have the 2.2 GHz core i7 15" pro. But with the recent release of Lion and the new iMac, Air, and mini I'm wondering if I should find a way to wait for a few months for a refresh. I'm currently without any laptop and I've got about $3000 to spend so I can get the SSD configuration along with the Hi-Res antiglare but if the new models come out right after I get it I will be furious. Any thoughts or advice or anyone familiar with any credible rumors that might give a clue as to whether or not another refresh is coming this year?