Wish that's all of these will be behind soon, and monero dev could work on the final GUI and the DB !! (eat my RAM 
Yes, please!
I have windows 8, pentium chip, 4GB RAM. I am currently running a full node, mining, (not with wallet), with both threads = 100% cpu, on bct forum on chrome, watching video on IE, while playing poker on the intertubes.
Yes the DB will be finished soon®
If you would like to donate to the dev fund any amount would be appreciated.