If you will never need wireless you could get a Linksys BEFSR41, which is a 4 port cable router, at around £30. For only another £4/5 you could get a WRT54GS wireless router for future proofing. Other cheaper makes are available but I've always used Linksys myself.
Note - anything you buy must be a 'Cable/DSL' or 'Broadband' router - ADSL modem/routers will NOT work on VM.
Unless you are doing heavy downloads on the PC, eg filesharing, then you are unlikely to need QOS. VM normally has no interest in what network devices sit behind the modem.
HTH (&

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