Thank you for your question. Both the knobs and pulls seen in the kitchen above are made by Schaub & Company. They are both from the empire designs collection and are shown in a polished nickel finish. Here is a link from the Schaub & Company webpage where you can see there are other finishes available. The knobs are on page 2.

http://schaubandcompany.com/search-results

Since there is no price listed, I also included links for both from JustKnobs.com, which have pricing and a little clearer picture of the details (like the curves on the knob and the feet on the pulls).

Pull: http://www.justknobs.com/Schaub-and-Company/Empire-Designs/ss879pn-ms.html?finish=Polished%2520Nickel

Knob: http://www.justknobs.com/Schaub-and-Company/Empire-Designs/ss882pn-ms.html

Please let us know if you have any more questions.

how would spruce up a kitchen with oak cabinets.

Thank
you for your question. There are many ways to "spruce up" a kitchen.
New hardware, countertop or backsplash are some of the options. The type and
level of sprucing up mostly depend on your taste, and the amount of time and
money you wish to invest. Since there are so many possibilities you might want
to consider starting a design dilemma from your user home page. That way you
get input from the entire houzz community including other pros. We hope that
this information helpful. Please let us know if you have any more questions.