Help with upgrading storage solution

[GeekPower0]

I currently have 3 storage drives

 

1 Intel 240GB SSD (C:\)

1 Seagate 1TB HDD (D:\)

1 Seagate 2TB HDD (H:\)

 

Currently the way my system is configured is with Windows and most programs installed to the SSD, my games libraries on the 2TB, development files on the 1TB, and user files horribly mixed between C and D. The SSD currently has 24GB of free space, so I want to upgrade it so I can fit all my user files on it, as well as have space for more applications. I'm just not sure what direction I should take. Should I get a second 240GB SSD and put them in RAID 0... or should I just get a 500GB SSD and use the 240GB to accelerate the 2 HDD's with Intel SRT? Open to other suggestions too.

 

Also I do have a slot on my MB for a M.2 2260, and my max budget is around $250 USD

[Yuniks]

IMO another SSD would be the best option since you're not replacing other drives. If you can, get an SSD with higher storage. Most I would go is around 500GB