Computer advice which one?

i am looking at two different desktops from hp and would like some advice which one to get. before i began when i upgrade my systems i normally get an new one so the upgrade isn't an concern. i was looking at he s53280t and the hpe-150t but like the slimline design on the s5380t just wish it had the i7 on it. does anyone know if they are going to come out with the i7 for the slimline desktops. so would like your opinion on these two systems.