[Year 12 IT Apps] information needed for gantt charts

[McDonald, Debra A1]

Hi all,
 
I have just (and I know I am a little slow on the uptake here) realised that my school no longer has Microsoft project,,, and if I want it on the machines for the sac I need to pay $200 per machine. as it is no longer in the agreement.. it is the program that all the teachers here have used for Gantt charts for the last 7 years.. so now I do not know what to recommend or even try myself.. 
 
so here is my question.. what programs are all of you using for your Gantt charts for the sacs?  is there a really good one out there that is cheaper or should I just pay the $200 per machine which I am loathing to.. and so is the boss....
 
thanks for your assistance and time with this.
cheers
 Debra McDonald 
Network Manager
Lyndhurst Secondary College
Cranbourne
(03) 5996 0144
mcdonald.debra.a1 at edumail.vic.gov.au <mailto:mcdonald.debra.a1 at edumail.vic.gov.au> 

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