The NZXT Respire T20 is designed to maximize your cooling performance without spending a forture. Targeted toward entry-level builders, the T20 is only $29.99 MSRP with one 8 mm and two 6 mm direct touch heatpipes. The single 120 mm fan should provide sufficient cooling for most Intel and AMD processors with minimal noise.
The NZXT Respire T40 comes in at $39.99 MSRP and does everything a little bit bigger. The Respire T40 comes with four 8 mm direct touch heatpipes and a wider fan span. This should provide a little better performance and a little more overclocking headroom without breaking the bank.
I like NZXT's approach to expanding their product lines and markets. It reminds me of another PC component company, but I can't quite put my finger on who. Either way the Respire T20 and T40 should be great new options in the budget cooling market.