HELP (Newby) Putting all the Pieces Together

Hi All...I've read tons of stuff now and am so confused I can't figure out what is what.

So what am I looking to do?
1) Softmod my PS2 Phat 30001 w/HDD (Will be modding a OEM Network Adapter for SATA HDD -- stuff on the way)
2) Load my backup PS2 AND PS1 games to HDD
3) Play my backed up PS2 and PS1 games from HDD

My confusion...I've read about OPL, FMCB, PopStarter, etc. but I can't figure out how they relate or how I would install them or make them work together. Each tutorial talks...

HELP (Newby) Putting all the Pieces Together