Why have 2 when you can have 3? I followed this write up:
Gauge installation writeup - Gauges - SR20 Forum
I have water temp, oil temp, and oil pressure. I got exactly what is listed in that write-up and I think it looks awesome and the gauges work great. I replaced the bulbs that came with it with cool white LEDs (194s). While I used the mounting plate described in the linked write-up, I just ordered this one:
52mm UNIVERSAL TRIPLE 3 GAUGE DIN RADIO GAUGE DASH POD | eBay
While I don't think it is as nice looking as the one I have now, I believe that one is angled which I think will really help. My water temp gauge is furthest from me and the angle is bad enough that I can't really tell from my driving position if it is at 210 or 230. I have yet to get that plate, it should come early next week and I'll report back on how it looks. Here's a pic of my current set-up: