Best language resource(s) to use?
Firstly,

to all!
I need to learn conversational German before September arrives. I am all too well aware of Rosetta Stone, but I am unable to justify spending $300-400 on it's equipment. Anyone know of any decent language resources that might be available, or indeed, that anyone on here can vouch for personally? Free would be nice, but I am willing to go up to about $35 or so, if need be.
I have downloaded Duolingo and Mindsumo on my IPad, but don't know much about them, other than they are free. I'll be trying them shortly.
Thanks to all, and hope you all have an excellent year!