Thanks for the feedback. If it helps at all, the rest of the setup:
SM58
Saffire 6
My PC (Win7 32bit, Phenom II x4 @ 3.4GHz, 4gb RAM) running Reaper
Looking at Sennheiser HD201 & Sony MDR-V150 just now...would be happy to get them AND some speakers, seeing as their cheap. Would a set of hifi...