Well, I don't post much cause I'm still learning, and believe I just don't have that much to offer the group since I'm pretty new to casting. But, I have made it through the first 100 pages, and one topic that I've seen repeatedly is the search for a powder source other than HF or powder buy the pound that is both cost effective and doesn't require a 50 pound purchase.
I think I might have found one, and haven't seen them mentioned in the first hundred pages - Prismatic Powders. On their home page, they have a tab for discontinued, overstock, and discounted powders. Most are priced at $3.99 per pound, and they have quite a few colors to choose from. I thought shipping was reasonable as well for multiple pounds, but it makes the price of one pound around $15. ($4 for the powder and $11 for shipping). I ordered several pounds to spread out the shipping cost. Shipping didn't really change whether ordering 1 pound or 5 pounds.
Can't wait to try out my first PC bullets over the holidays - I'm also waiting on my HF PC gun, as well, but for now Im going to go back and finish reading the last 13 pages of this thread.
Also, thanks to everyone who has contributed so far.