Thanks for the answer Chetan, I didn't know that {% querystringvariable %}
pulled values from the query string, so that was helpful.
As far as the total search results count goes, that's fairly disappointing that there's no built in method or property for that, considering it's commonly displayed on most search pages. Meaning most internet users will expect to see the total number of results.
I guess I'll have to add code to SearchResults.ascx.cs to put the total results (since they're available there) into the Session object and then add a custom macro to get the value from the Session object?