BHC - congrats on purchasing a Web! I love mine. Best all-around treestand hunting platform there is, in my opinion.
As far as climbing systems go, there are a lot of options that can be used with a mobile hunting setup like the Web or a Tree Saddle or a lightweight hang-on stand. Here's a quick look at a few options to give you some perspective:
Set of 4 Ameristep Aluminum Rapid Rails: Cost about $100. Weight about 13 lbs.
Set of 4 Lone Wolf Climbing Sticks: Cost about $170. Weight about 11 lbs.
Set of 12 Cranford EZY Climb Folding Rope Tree Steps: Cost about $108. Weight about 7 lbs.
Set of 12 Cranford EZY Climb Detachable Tree Steps with 12 EZY Climb Detachable Lag Screws: Cost about $70 (additional lag screws are $2 each). Weight about 6.5 lbs.
Multi-step solutions like the Ameristep Rapid Rails and Lone Wolf Climbing Sticks have the benefit of only having to connect 4 individual sticks to the tree. The disadvantage is that they weigh more and are bulkier to transport.
Single-step solutions like the Cranford EZY Climb Steps have the advantage of weighing less and being easier to transport, but you have the burden of having to connect 8 to 12 individual steps to the tree.
In my opinion, the absolute best treestand climbing system on the planet is the Cranford EZY Climb Detachable Tree Steps with EZY Climb Detachable Lag Screws. However, they are useless if you are not allowed to use screw-in steps where you hunt (I use mine in the awesome deer hunting state of Kansas, which allows screw-in steps everywhere!). If you can't use screw-in steps where you hunt, then I would go with the Cranford EZY Climb Folding Rope Tree Steps. The best price is at eders.com. A set of 12 will run you about $108 shipped.
Cranford EZYClimb Folding Rope Tree Step, 4/pk.
If you want to get the most out of the Web, you will need a step belt to give you the ability to step around the tree if the situation calls for it. The most popular solution for a step belt is 4, 5 or 6 Ameristep Strap On Tree Steps connected to a single belt that you attach to the tree at the height you want your feet to be at. If you use a strap with a cam buckle it will be quieter to attach the step belt to the tree, but it will likely come a little bit lose as you step on it during your hunt. If you use a ratchet strap it will make noise when you attach the step belt to the tree, but it will cinch down nice and tight and stay put. The only issue is that the Ameristep Strap On Tree Steps were discontinued several years ago and there is no similar product available today. As a result, they sell for a premium on ebay and places like Archery Talk if you can find them for sale at all. Most of them have been snatched up by Web and Tree Saddle users. I have seen them sell as high as $20 a step, but usually they go for about $12 a step on ebay. So, a set of 5 for a step belt will probably run you at least $60 if you can find some for sale. Not too long ago someone had a nice set of them for sale in the tndeer classifieds for cheap! They got snatched up really quick. I was bummed that I missed them.
Best of luck to you with the Web and make sure you practice climbing with it, sitting in it, and shooting from it before you actually go in the woods to hunt with it.