Hi ktmcg, equivalent to that course is purchasing some books and practising by yourself. I will suggest some books that I used and got a top score at the GRE. You could
1. Kaplan
2. Princeton's Verbal Workout
3. Verbal Insights -Vibrant Publishers
4. GRE Reading Comprehension- Vibrant Publishers
5. Manhattan Review
6. Math Insights Vibrant Publishers
Most of these books are available within $30. You can find most of them on Amazon. They will surely help you.