I recently found out that my workplace has a discount system called www.workingadvantage.com. The WDW tickets on there seem to be pretty decently priced.
I would FP for SDD in case you get there and see that its doable for everyone. It would have the longest standby line anyway, so at least you'd get the most value for your FP.
I chose mine because at the time I was interested in virtual reality equipment. A large purchase, then a mediocre sale on ebay later... and I no longer care about VR. :tongue: