I would add all your domains with set prices in Sedo and export them as CSV (If make offer, only show the Sedo link and "Make Offer" for price). Then you have the option of creating a very easy database by importing the CSV file and displaying the price with either a "Buy Now" button that goes through Sedo, Paypal, other payment systems or all (so you can get more if they choose to directly purchase through PayPal). It's not that complex of a task to do as I believe phpMyAdmin can import a list and use simple pagination with PHP to format the tables to look pretty.
That way if you update a category or price in your Sedo portfolio, you can purge your entire database and add the new CSV file (other parking companies allow exports as well, so this doesn't apply to just Sedo).
This method, of course if they're your own domains... though I'm sure if you got someone elses CSV file and they allowed to share it with you, you could link to them as well. You could also monetize it by adding random/premium domains and the Sedo affiliate link (which I would add to all your domains anyway to get commission on top of your own sales).
It could end up looking like this in the end:
(It's not so pretty as seen below, best formatting on vB)
Domain Name
| Category
| Price
| Buy Now
|
xxx1.com
| Health/Dentistry
| $1250
| [Sedo] [PayPal]
|
xxx2.com
| Recreation/Food/Drink
| $1500
| [Sedo] [PayPal]
|
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If Tia Wood already has something made up, go with her. She's awesome and can customize just about anything! (This is just an idea of how I would do it).