HP 39gs vs HP 50g

[vangelis]

All answers have been very helpful. Thank you very much.

After some thought I think I will go with the 39gs... In my opinion it's both a better option for an inexperienced individual like me and also an economical one. In the end I thing its capabilities overcome my demands.
Right now it's finals period in my uni so after I am done , I am planning on getting a small job to make some money on my own....if things go well I'll be a 50g owner by June!!! I would really like to use this RPN system..!