Sounds like you have a good budget and have been riding awhile. For your wants, I'd suggest: NS Infinity as you mentioned, but also the Gnu B-Pro and Roxy Eminence.
16 Gnu Swallow Tail Carver . 16 NS West . 15 NS Snowtrooper BIA
16 Burton Genesis X . 15 Now Drive
16 Flow Talon . 14 Flow Hylite