For a bigger budget, the one best piece of cardio and strength equipment may just be the rowing machine.
My personal pick is the Concept 2 rowing machine.
Compare Prices: Concept2 Rowing Machine
This machine is found in every elite rowing team and club around the world. At $900, it's not an inexpensive piece of fitness equipment, however, it provides an efficient, total body strength and endurance workout.
The machines are extremely durable and hold their value for years. You can often find used Concept 2 rowers on your local Craigslist under the sporting good section.
Also See
How to Use a Rowing Machine
