I'm doing the same thing, but my MFD's are in the top corners. I need to move them to the bottom and see how that looks. My main monitor is a 26" and the bottom is a 19". You using a 24-26" for yours? I'm using the built in cockpit display extractor and MFDE from viperpits.org. I may have to look into using Helios.
i5-2500k @ 3.3, Asus P8Z77-V LE mobo Windows 7 64-bit, 8GB 1866mhz
EVGA GTX 670 FTW 2GB, 8800GT 512MB, 256GB SSD, 500GB WD, CH Franken-Potato (Stick, Throttle and Pedals)
TM Cougar MFD's, TrackIR 5, G15 keyboard