If you're planning on buying it anyway, and don't plan on waiting in line at the Apple store the day it comes out, maybe you'd like to buy it at Amazon and throw us a referral? They've set up a special landing page for you to get all the details - right over here (The W at Amazon).
Keep in mind this'll only work on Intels - if you have a PowerPC, you're stuck at 10.5 (and probably need to think about upgrading some time in the next 24 months).
- Yes, the surge could be the cause of this, and consider yourself very fortunite that it's only the comp. - Off the top of my head, could be the power supply. That would be the best case scenario with this. WOrse case, the motherboard.