With NetScaler 10.5 you can configure it for Exchange 2013 / 2010 load balancing and SSL offloading.
See the manual for how to configure it (without SSL offloading). In the manual it says to configure a content switch, but when you have all the functions on the same servers, you can do it by creating only an virtual server load balancer wit an virtual IP.
When you want to use SSL offloading, you can bind a valid certificate (see my other post for configuring / importing an SSL certificate) to the load balancer en configure Exchange foor SSL offloading. See the Technet article here. If you have any questions, feel free to contact me.