probably better to start a new clothing thread, you'll get more responses.
Google too, there's a ton of info out.
I think a high quality full face helmet and good quality boots are where I'd start.
Jackets and pants will depend on where you live and the type of riding you do.
I live in TX and the summers are brutal.
Shoei RF-1100 and a Shoei Hornet for offroad, I wear a Tourmaster HiViz Epic jacket in spring, winter and fall and I just got a BMW Airshell Summer jacket in Hiviz to upgrade the Cortech summer jacket I've been using which isn't hi viz. I like being seen.
Sidi Goretex Canyon boots, First Gear Air pants with added hip pads (one of the few brands that have a "short" length pant, Dianese shin/knee guards and N2 kangaroo gloves.
Patagonia Capilene 2 or 3 underneath. I put on a Gerbing heated jacket when it's really cold.
I bought everything on sale, so keep an eye out for deals.