the cd/dvd drive works fine now, there was a piece of ?plastic? preventing the disks from going in correctly. i found the battery only to have about an hr of charge. I have a limited budget, what would be the best upgrades for this laptop?

-daystar 550mhz g4 (other than ebay, where could i find one?)

-new battery

-2 new batteries

- the hard drive adapter for the expansion bay

i am leaning to a single new battery.