Do you think i should buy on of these as well?
You will want a mixer. They are really cheap so no need to panic.
The good news is a setup including the XM8500 is still below $80!
Behringer Xenyx 502 Mixer - $40
Windscreen - $3 Note I would recommend you get a Windscreen. They're cheap and versatile.
150 seems high. You can get the Q2U on amazon for 70 bucks, and you can get cheap boom arms for 15-20usd, including a foam "popfilter". The nice thing with the q2u is you can change to xlr when you have the money.
https://www.amazon.com/dp/B07FKG8PGZ/ https://www.amazon.com//dp/B00DY1F2CS/ https://www.amazon.com/dp/B0002GXF8Q/
Now that that is out of the way.
I would consider instead of going for the q2u, to look at the XM8500
https://www.amazon.com/dp/B0002KZAKS/
For the money its super hard to beat, and personally I feel it sounds better than the q2u.At a normal price of 25usd (on sale on amazon for 19usd currently) you can easily pick up the cable needed, a foam tip and boom arm as above, along with a xlr interface.
The reason I would go this way, is that you then set yourself up for a nice upgrade path down the road. As for what interface to get, there is a lot to chose from, but for streaming I would go with the wave XLR interface from Elgato. https://www.amazon.com/dp/B09738CKKX/
The interface itself isnt anything special, its not bad, not great, but does a good job. The reason to pick up that interface over say Focusrite, is the Wave software it comes with. The software will let you adjust volume easily independent between what you hear and what stream hear, along with routing audio wherever you want it. For the price, there really isnt anything like it.
Just editing in the comparison from podcastage.
https://youtu.be/o42-oX6BPYU?t=547
Most of them. I bought a couple On-Stage like this
http://www.amazon.com/Stage-Foam-Ball-Type-Windscreen-Black/dp/B0002GXF8Q/
Then I bought a cheap set of colored foam screens.
http://www.amazon.com/gp/product/B007E69TPA/
These are a little thinner but cheap and cheery.
The maximum midline ring diameter on the ATR2100 is 51.2mm per my calipers and the ATR to my right.
!