Encoding taking up to 35 hours, am I doing something wrong?

Hey guys,

I have a 1.5hr hour project that I'd like out relatively soon, but it's been stuck encoding for the last seven hours (and estimates it will be another 30hr) and it's only at 20%!

My computer:

Processor

1 x Intel® Core™ i7-2600K Processor (4x 3.40GHz/8MB L3 Cache)-

Memory

1 x 8 GB [4 GB X2] DDR3-1333 Memory Module-Corsair or Major Brand

Video Card

1 x NVIDIA GeForce GTX 560 Ti - 1GB - EVGA Superclocked - Core: 900MHz-Single Card

Motherboard

1 x ASUS P8H67-M PRO-

Primary Hard Drive

1 x 64 GB ADATA S596 Turbo SSD-Single Drive

Data Hard Drive

1 x 1 TB HARD DRIVE -- 32M Cache, 7200 RPM, 6.0Gb/s-Single Drive

Is this to be expected with a project of this size? Please help!