+1 on the Lenovo. I don't own one but, just like you, I've been researching some and to the best that I can find out the Lenovo looks like great bang for the buck value. My current desktop is a 1.8 intel duo, with 3meg and XP SP3, and it gets the job done. As near as I can find out, one of the main reasons it gets the job done is because it's a duo and can handle threads more efficiently. Your new Lenovo should be much faster than my desktop because it has a faster processor and faster memory. The four meg should be plenty for what you're using it for--same goes for the 5400 HD. I say go for it.

Don't know about the bus adapter, but that looks like a good price.
Later,
Jim