Sounds good, if the price is right & you can use your current rig.

Network hashing rate is just now above the previous high (currently 28.070 Thash/s).  I need to see 100 Thash/s from ASIC's before thinking "ASIC's are here".  That could occur in 2 weeks or 2 months.  Many were posting the imminent death of GPU's 6 months ago.