Here ya go:
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fimg198.imagevenue.com%2Floc548%2Fth_138306356_Capture5_122_548lo.JPG&t=665&c=1feRWV_r-Unsgw)
Row 1: Type of ASIC
Row 2: How many GH/s per unit
Row 3: Number of units to get to ~ 1TH/s
Row 4: Row 2 x Row 3
Row 5: Price per unit (in USD)
Row 6: Row 5 / 12 (rough approximate USD/BTC price)
Row 7: Row 3 x Row 5
Row 8: Row 7 / 12 (rough approximate USD/BTC price)
Row 9: Row 4 / (Row 7 / 1000)
Rows 3, 4, 7, and 8 are all for purchasing enough hardware to get to as close to 1TH/s as possible (with the exception of the BFL SC MR, which can't go that low).