I'm running much heavier equipment than you but have extremely good use of my two tripods. I will use a 75-300, or mostly a 500mm Reflex and even my telescope tube 2000mm on my bigger tripod.
I got all my tri/mono pods on EvilBay, so if you like the used route there are good options from time to time.
I picked up my Slik 500DX with a 320 Ball Head for under $90. This is a very stable though light (AMT alloy legs).
On the "heavy" end I picked up my Slik Professional with 909 head for under $90 too - this is probably one of the sturdiest tripods out there but normally hundreds of dollars more.
Matter of fact my Slik 381 Monopod with 800 Ball Head was also $90
But the Slik 500s with a head are normally around $150 NEW on EvilBay. (varies dependent upon head)
The next up are the Slik 700s but those may be $250 with a good head
Watch out for general merchandise stores such as Walmart, etc as I saw a Manfrotto for $149 that, to me, wasn't anywhere as sturdy as the Slik 500 that I got. I'm sure each manufacturer's make really nice tripods, it's just trying to find that one that you really like and is affordable.
such as this new tripod
Slik Pro 500 HD w Pro 500 DX Tripod Legs and SH736 Head 615 501 049368700016 | eBay
Material Aluminium, Magnesium, Titanium (the "AMT" alloy)
Physical Features
Folded Length 27.4 in.
Height Range 25.7 - 65 in.
Leg Sections 3
Maximum Load 10 lbs
Weight 5.4 lb