I'm not sure if you can get any new 1100d's anymore (if you are indeed after a new camera).
I think the basic option is the canon 600d and even that is nearly out of stock which then leaves the 650d or 700d.
http://www.kogan.com/au/buy/canon-eo...-lens-18-55mm/
There are plenty of other good camera options out there (nikon/sony/pentax etc) however canon users have access to Backyard EOS which is great for image acquisition and Magic Lantern (awesome firmware update / program adding other features to camera).
However if you are looking at landscape/night scapes then there is a massive difference between these lower end DSLRs and say a canon 6d which has much less noise.