Hello,

being not very talented myself I support those Catters who recommended the tenor banjo. I found it easier to start with simple melodies picked than with chords (my fingers are short, so I have difficulties with the "F"-chord, which is common). The advantage of the tenor banjo is that you can use mandolin-tuning (GDAE) and you can find lots of tablature on the net. Some easier tunes can be found on Elisabeth Knuths website (link from mandolincafe.com) or jaybuckey.com.

Good luck (whatever you choose)
Ernest