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#11
60W isn't low for a PCI-E card that doesn't use any auxiliary power connectors: 75W is the maximum. However, it looks like the 4670 may be the most powerful low-profile card available. I don't see any at www.newegg.com, but they list a couple of 4650 cards. I like the look of this one:
Newegg.com - SAPPHIRE 100253HDMI Radeon HD 4650 512MB 128-bit GDDR2 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Low Profile Ready Video Card
(Unfortunately, it has a rebate.)
If you get one, let us know how it plays with your 220W PSU. The recommended supply for it is 400W.