I completely understand your situation. I have an e92 that I use as my only vehicle and it does an excellent job, definitely better than your s2000. However in your situation I would STRONGLY consider getting a cheaper DD. The s2000 you own is a unicorn and will only get more special with time. As an exercise, try finding one in the condition yours is in for purchase right now. You will have a very hard time doing so!
Maybe try looking at a used A4 or 3 series, maybe even a MazdaSpeed 3 or something?
Current: 2011 BMW e92 m3
Past: 2012 Audi TT-RS
2009 VW GTI