Are there other miners out there like me who are still turning a profit?  When Bitcoins were $18 a piece I was making $300/month, now that the price is down I'm still making $90/month so I see no reason to quit.  I initially bought more efficient hardware (80 Plus Gold PSUs and Radeon 5000 series cards) so my watt consumption is rather low.  I am on the fence about building another rig at this time, I want to get another 5970 since the heat output will be negligible in the winter (just crack open the nearby door) but don't want to deal with that extra heat come next summer.  The 7970s coming out have made me reconsider investing again so soon.  My rigs are paid off at this point I'm just waiting to reinvest.  I definitely will not be buying any more 6950s since their hash/watt ratio is nowhere near 5770s or 5970s so hopefully the 7000 series cards will be far more energy efficient.