Do I need a high end scanner?
From other sources and PP help, the Canon Lide scanners do a very good job. I don't think they are "high end" and are not expensive, so the answer to you question could well be no.
I think the scanning software can have a big influence on results.
Have a look at the online help for PP
www.ddisoftware.com/prism/help/scanner.htmThat'll give you clue about setting HP scanners and enable you to compare your scanner software with what is said there.
But as Fred says, it's a case waiting to see if anyone is using that scanner with PP.
Terry.