If you can afford it, go with the SSD. No warranty issues in the future, and no potentially severed cables. Learned my lesson the hard way a long time ago with upgrading a macbook pro myself. Never again.
I got the SSD. It's awesome.
If you can return it, that might be the best option. You'll probably have to wait even longer for an iMac, but it'd be worth it. I bootcamp as well on my imac, and the SSD has proven nice.