Totem Arro Vs. Sttaf

I'd go for Sttafs. A much better all-round speaker IMO. The Arros are very cute and great fun but I find the bass very one note and not very well intergrated with the mid. Afterall the port is doing pretty much all the LF. They're still great though. I also thought the tweeter is very good (if slightly rolled off) on the Sttafs when I heard them recently.

But I'd go for a used pair of Model Ones over either ; )

Yep and don't worry about power. The Sttafs sound great with little Rega Mira intergrated. Looking at your kit it seems either speaker would make a sweet little system.

Intergrated is probably the wrong word. More of a singular note bassline. It's not suprising really, look at the size of the driver. Small ported speakers give the illlusion of defiying physics but it is just that, an illusion.