If you're really interested in SACD you need to look out for a receiver that will natively decode DSD. Many will simply convert the DSD stream to PCM and then decode the stream as PCM. I'm not sure how up to date this list is, but there is a lot of info over a SA-CD.net:
There are two digital connections that can provide DSD input:
i.LINK with DSD is not a common feature (yet) but it’s available on various receivers, including Sony’s STR-DA9000ES, Pioneer’s VSX-59TXi and VSX-84TXSi, and Yamaha’s RX-Z9.
HDMI from version 1.2 up supports DSD but although several receivers are compatible with this HDMI version, so far few of them decode DSD. Models that do include Sony’s STR-DA5300ES (called TA-DA5300ES in Japan), Marantz SR60001, SR7001, SR8001, SR7002 and SR8002, Yamaha’s RX-V661, RX-V861, RX-V1700, RX-V2700, RX-V1800, RX-V3800 and RX-Z11 (DSP-AX661, DSP-AX761, DSP-AX861, DSP-AX1700, DSP-AX2700, DSP-AX1800, DSP-AX3800 and DSP-Z11 in some regions), Denon’s AVR-3808 and AVR-4308 and Onkyo’s TX-SR805, TX-SR875 and TX-NR905 receivers.
