So, i've read all the regular posts, and here is what I have tried. From one day to the next, I was hanging on the Apple Grey startup screen. It won't let me zap the PRAM. I CAN boot to the system disk and run HW test, which are all perfect, no errors. I CAN boot to the system disk and run disk utility and I tried to repair permissions, but that got about 95% of the way done and then stayed like that for two+ hours. I tried running the disk utility and repair disk but I get Invalid Node errors, disk cannot be repaired. I tried booting to FW target disk mode, with my other MPB. I could get the FW symbol on the screen and connect it to my MBP, and it would show up in Disk Utility on the host computer, but it never mounted so I couldn't get any DATA off it, which is what I really need. I've tried running from terminal and single user mode and running the fsck_hfs -vpr /dev/disk0s2 (I don't have the exact command here, but you get the drift) That ran for 30 minutes, a bunch of stuff, but mostly invalid node errors. So, WHAT can I do? Everything seems to point to disk warrior utilities, but DANG 100$ is a lot of coin these days. I simply cannot imagine that there isn't a user available solution for such errors? Can anyone point me to another possible solution? can anyone LOAN me DW? Does DW at least have a guarantee if it doesn't fix the disk? thanks for the great insight and thoughts community.