Is this good enough for HTPC duty?

I upgraded a family members computer, and have inhereted some old, but lightly used parts. I have a few friends that have asked me to look out for cheap parts for their own HTPCs, so I am interested in some opinions about these parts.

It is an AMD socket 754 mATX motherboard with a PCI-E 1.0 slot, from a prebuilt E-machines that has been turned on once a month since it was bought. The bios has no overclocking settings. I won't use software to OC some-one elses computer, so the processor is static at stock speeds.
http://www.e4allupgraders.info/dir1/motherboards/socket...

With a Sempron +3400 CPU (2.0ghz single core 62w).
http://products.amd.com/en-ca/DesktopCPUDetail.aspx?id=...

And a gig of DDR400 (2 x 512 sticks generic).

I am just wondering if this is a platform powerful enough to invest in a 5450 + BD drive for HTPC duty? I haven't attempted a single core build of this nature, so am wary to use it as a basis for such a box. I have a couple 1gb DDR400 (also generic) sticks that I can use if I need to increase the memory.