One other piece of gear that's well worth buying while our dollar is strong is the DGM Optics NPB filter - it's a filter which makes many nebulae easier to see and will work very well with 12" of light gathering power and low to medium magnifications. You can buy them from ebay and it's best to get the 2" version to take advantage of low power, wide field eyepieces. If using a 1.25" eyepiece the 2" filter can screw onto the 2"/1.25" adapter (taking care that the eyepiece barrel isn't long enough to hit the filter).
http://www.ebay.com.au/itm/NPB-2-0-D...item4841781f2e