Hi Todd,
As you can see from my User CP at the bottom of this post, my set-up comprises a Pentax K10D body & D-BG2 grip,
Tamron 18-250mm zoom & the Sigma 10-20mm wide-zoom.
Have a look at the bag I purchased, which is well constructed, compact but capacious, waterproof, discrete and reasonably inexpensive ! What more could you ask for ? It's called a Lowepro Nova 3 and has additional zippered pouches sewn into the lid to store SD cards etc plus extra compartments and moveable velcro dividing sections.
I'm very pleased with it overall and it's available in: Black, Forest Green, Grey or Navy Blue.
Click on this link to see more:
Lowepro Nova 3 AW - Nova AW Series | Devon Camera Centre
Capacity: SLR, 3–4 lenses, flash, compact camcorder and accessories
Size (Interior): 9W x 6D x 7.5H in. / 23 x 15 x 19 cm
Outer fabric: water-resistant 600D TXP™ and 600D TXP™ ripstop
https://www.pentaxforums.com/forums/attachments/pentax-camera-accessories/614...buy-image1.jpg
Best regards
Richard
P.S. Another benefit is that it's a very 'discrete' bag, which doesn't exactly shout 'come and get me' to low-life scumbags !