Yes.
One of them is a 7.5v 100W and the other is +5/+15/-15v 60W. Both supplies have a trim screw to raise the voltage of each by 10%. This will bring the voltages into S-100 spec of 8v and 16v. However I've been running my altair on 7.5v and 15v for a while know. Seems to reduce heat quite a bit and not cause any negative operation.
Power Factor has several power supplies larger than 100W. The largest is 320W at 7.5v. PLENTY for an S-100 system!
http://www.power-factor-1st.com/shop...es/s-100f.html
http://www.power-factor-1st.com/shop...ries/t-60.html