At 6ft something you´ll have no big trouble tossing around a 29er with short stays.
Might not be perfect for pumptracks but you probably wouldn´t enjoy riding a small frame too much. A Honzo with its 419mm stays is pretty close to the less radical 26ers.
If you go to a 380mm 26er chainstay-bike - that´s different of course. Too short is possible though.
I am 6ft and a bit myself with long arms and most geezers rage about small frames and flickability and such. Part of it is true. My XL Stumpjumper 29er FSR isn´t THAT flickable, true. But at my height it´s okay. The Large Heckler I rode before felt like a BMX and several large (not extralarge) 29ers that I testrode felt really flickable.
Without the needed BB height for rear suspension you should be fine on most 29ers.
But if you just want to goof around, some trials moves etc. a 26er might work better.
HEck, it´s not a Chromag, but for the wheelsize thing - take a look at this. Looks flickable enough.
Ah - and congratulations on graduating. I am actually finding myself in the same situation, except that my fat bag of money will arrive in September.
I am looking at a rad short chainstay 29er HT myself. Singlespeed and on =)