30 gallon

as for the heater i would suggest this one: http://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=8172&N=2004+113767
with the glass heater you risk live rock falling and smashing it. i use this stainless steel heater and its great.
that lighting unit will be good for almost any softie and possibly some LPS. what do you plan on keeping?
i advise you to not get the prizm skimmer. i had it and hated it. i now have a remora pro and its excellent. ive also heard good things about the coralife superskimmer. HTH