Buying my first camera bag! ($50) Help!

Hey everyone, well I'm buying my first DSLR and realized I should add a bag to the needed expense list but clueless on what to get.
I would like to spend $50 or less, because I already have a really really tight budget and need all the money I can get on the lens, camera and memory. So if you could recommend one for me for this price or even one that is cheaper then that would be great. What I plan to have in it to start is:

• 20D or Xti (Most likely a 20D)
  
• Canon 55-250mm IS USM (with hood)
  
• A few flash cards.
  
• 18-55mm (non IS, with hood)
  
• A little notebook, maybe a little guide or what not.

lowepro flipside 200 - right around $50.

backpack with a rear opening, comfortable, compact, durable.

holds this equipment snugly and when i break out my equipment i can put my keys/wallet/valuables in the pouch or inside for safety (i shoot nightclub/party events so it makes sense.)

20D
tokina 12-24mm w/hood
tamron 28-75mm w/hood
canon 50mm
430ex
cards/supplies/cloths/​batteries.

although it looks small it really holds alot and can be configured to fit even a 70-200L ... good investment indeed.

i have pictures of the bag packed up and will have a review shortly after i 'break' it in a bit.

seekphotography wrote in post #5763267
lowepro flipside 200 - right around $50.

backpack with a rear opening, comfortable, compact, durable.

holds this equipment snugly and when i break out my equipment i can put my keys/wallet/valuables in the pouch or inside for safety (i shoot nightclub/party events so it makes sense.)

20D
tokina 12-24mm w/hood
tamron 28-75mm w/hood
canon 50mm
430ex
cards/supplies/cloths/​batteries.

although it looks small it really holds alot and can be configured to fit even a 70-200L ... good investment indeed.

i have pictures of the bag packed up and will have a review shortly after i 'break' it in a bit.

Thanks, I will definably check it out!