Currently Being ModeratedApr 25, 2012 4:17 AM (in response to JohnRock)
Seee this FAQ on freeing up disk space: http://thexlab.com/faqs/freeingspace.html . If you were starting with only 1GB of free space, that's way too low. Generally, you want 10%, give or take, of hard drive free.
OmniDiskSweeper is good to identify files by size: http://www.omnigroup.com/products/omnidisksweeper/