Upgrade to an existing website. Professional header & logo for correspondence

Information for the business: Embryo Transfer in Cattle
Design details: Hi,
I'm looking to spruce up my jaded page headers primarily and then to move onto upgrading my website. I'm a vet who specialises in bovine embryo transfer. It's important to me that someone looks at my marketing and says " this guy is a professional". At the minute, my paperwork says this guy can use Microsoft word!
If I find the right person to work with, I'm looking at a new logo, new page headers and upgrading the website if the budget allows.
Thanks for looking
Ideas for the visual style: Cows, calves & science!
Extra notes: www.vetembryos.ie is the current website