If your current snake is still small enough for a 24x24 you could get a T8 with divider and use the extra money you were going to spend for a T25 and fill the other side of the T8. If your current snake is big enough for a full T8 you could still order the other T8 with divider so you have it ready for your next purchase. Either way you go I would get rhp for the T8. If you use a divider the 40w from reptile basics should work, if you don't get the divider the 80w should work. If you have the divider and a snake on each side you will need a 40w for each side. You could also get an rhp from pro products but they cost more but either company you won't be disappointed. Congrats on your graduation! Like I tell everyone if you have the funds for equipment, food, and possible vet bills then feed your addiction! Lol