Lets start at spray skirt. I would say one with a bungee rand for now. Just for the ease of on and off. If you have to wet exit, the bungee rand is much easier than a rubber rand. The Immersion Research Shockwave is a good skirt. Also has a strap so you can use your knee to open the skirt with. Snap Dragon and Wildwasser also make good skirts too.
Paddle: All paddles wear down over time. So buy something that is not gonna break the bank. I like the werner carbon paddles. Basically a Werner Sherpa is a fiberglass blade. I prefer to buy it with a carbon blade. The price difference is about $20 for carbon instead of glass. The plastic blades are cheaper but, they also flex and weigh more. Buy something that won't break your heart to throw away.
PFD: This is more along the lines of a comfort issue. You need to try on multiple vests. See which style fits best. You don't need a rescue vest at this time. At this stage simpler is better . Look at Stohlquist, Astral and NRS.
Helmet: All depends on how much coverage you want. They range from brain buckets to full face. Also, everyones head is different. This is another item you want to try on. Helmets that are comfortable on me may not work for you. Not saying this because of size difference but because of shape. Look at WRSI, Predator, Sweet Protection and Shred Ready.
is a shop that has all the equipment you require. This way you can see whats out there and the cost of each item.
Welcome to WW Kayaking, be safe, I kow you'll have fun.