1)Hello guys, for 3d animation software/high graphics dependent software to run smoothly, what kind of pc would u advice I go for?

1b) How much can i get it (both new /London used/Nigerian used)

2)i have a pc I'll like to sell, how much do u think i can sell it....still neat and in good condition except the battery dat doesn't last long again.... Wanna sell cos of the need for question 1above

Info
Compaq Cq58
4gig ram
64Bit