Ok, I used Cain and got some good (very) rough estimates of what I want:

1.8Ghz P4 with 512MB of RAM
1 account


Code:
Hash Type	Characters	         Length   Time
LM	Alpha Numeric Single Case	1-7	 10 hours
LM	All Characters Single Case	  1-7	  35 hours
NT	Alpha Numeric Single Case       1-7	 6.2 hours
NT	Alpha Numeric Single Case      1-14	55,000,000 years
NT	All Characters Single Case	1-7	  22 Days
NT	All Characters Single Case	1-14	 400,000,000,000 years