You should also post on Head-Fi - lots of great info over there.
One recommendation you might not have thought of is a portable amp. Some of the best portables will drive Sennheisers very well and you could get double duty with your Westone 2 IEs. I find all IEMs benefit from amping the signal from your iPod, Zune, etc.
Look at Practical Devices XM6 (includes a DAC), Ray Samuels Audio SR-71A (amp only), or iBasso PB1, among alot of great choices.
Good luck.
One recommendation you might not have thought of is a portable amp. Some of the best portables will drive Sennheisers very well and you could get double duty with your Westone 2 IEs. I find all IEMs benefit from amping the signal from your iPod, Zune, etc.
Look at Practical Devices XM6 (includes a DAC), Ray Samuels Audio SR-71A (amp only), or iBasso PB1, among alot of great choices.
Good luck.